1. "In the Beginning"

In 1840, Ambrosius Vallin is engaged to marry Grace Neville in the island town of Dante's Cove. When she discovers Ambrosius having sex with his valet, she uses her powers as the Avatar, or high priestess, of one sect of the mystical religion, called Tresum, to kill the valet. Grace imprisons Ambrosius in the sub-basement of her home, cursing him with advanced age. The only way he can win his freedom is through the kiss of a handsome young man.

In the present, Kevin moves to Dante's Cove to be with his boyfriend Toby, after moving out of his home to get away from his abusive, homophobic stepfather. He moves in with Toby in Grace's old house, now the Hotel Dante, along with Toby's lesbian artist friend Van and Toby's childhood friend, Adam, who's a straight "trust fund brat." Kevin begins seeing visions and hearing voices calling him by name.

During a party, Kevin is drawn to the sub-basement and finds Ambrosius. Ambrosius kisses him, regaining his youth and freedom. Ambrosius uses his own Tresum powers, learned while he was in captivity, to force Kevin to cut his own wrist, landing Kevin in the hospital.

2. "Then There Was Darkness"

Ambrosius quickly becomes obsessed with Kevin, using his Tresum powers to seduce him. Grace, still jealous and angry over Ambrosius's betrayal, murders Kevin in the hospital. Enraged, Ambrosius attacks Grace and imprisons and ages her as she did him.

Through some unknown means, Kevin is restored to life by a kiss from Ambrosius. However, Grace's act breaks the spell that Kevin had been under, leaving him without any memory of Ambrosius. Using a spell from a Book of Tresum she's found, Van reverses this curse and frees Kevin to again be with Toby.

Also drawn into Ambrosius's influence is Cory, who also lives at the hotel. Cory develops a Renfield-like fixation on Ambrosius. After Cory tries and fails to break up the couple by lying about their infidelities, the season ends with Ambrosius, deeply obsessed with Kevin, and Cory seemingly murdering Toby and dumping his body in the ocean.

1. "Some Kind of Magic"

Toby washes ashore, having survived Ambrosius's murder attempt, but with a loss of memory. Grace escapes her prison and reclaims her youth. Ambrosius digs up his own grave and recovers a cache of gold coins that his mother buried there. Following Adam's advice, he updates his look and wardrobe and starts calling himself "Bro." Van casts a spell to reveal the truth about what happened to Toby, drawing Grace's attention and her girlfriend Michelle's disapproval. Van promises not to use magic again but, when Grace attacks, the Book of Tresum rises and defends her and Michelle sees the aftermath.

Toby, having recovered his memory, follows Cory to Bro's new place and calls Van. Bro begins to strangle Cory and, when Toby tries to intervene, again tries to murder him. Van arrives and instinctively defeats Bro, casting him and Cory far out to sea. Adam later finds Cory's body washed up on shore. Michelle delivers Van an ultimatum to leave the island with her. Instead, Van casts a spell to make Michelle forget the magic. The spell backfires, wiping out Michelle's memory of Van completely.

2. "Playing with Fire"

Van and Toby spot Bro at Cory's funeral. After meeting the mysterious Diana Childs, Van gets into an argument with the amnesiac Michelle and Brit. Van then seeks out Grace, asking her to teach her Tresum, but Grace refuses because Van is unwilling to swear herself to Grace's service. Michelle and Brit have sex but Michelle is troubled by visions of Van.

Bro visits Diana, who warns him not to reveal her secrets. In flashback, it's revealed that Diana taught Ambrosius Tresum during his captivity. Van and Grace perform a spell to repel any "love magic" directed at Kevin by Ambrosius. At his new construction job at the hotel, a co-worker puts the moves on Kevin. Toby catches them and makes Kevin move out.

Diana tells Ambrosius that he has to secure a willing Aspirant before the upcoming Solstice. Diana insinuates herself further with Van, who offers her services as a house cleaner.

As an after-effect of Van's spell on her, Michelle is tormented by memory flashes.

3. "Come Together"

Van sketches Grace, who's surprised to see that Van has included Diana in the picture. Grace confronts Diana and it's revealed that they are sisters. Diana says that the power of Tresum has been dammed up since Grace's wedding to Ambrosius was cancelled and Grace says that at the Solstice all the blocked power will flow into her.

Adam starts to spin out of control, abusing the local drug Saint. Under its influence he begins to realize his true sexual orientation, having sex with Bro. Kevin and Toby reconcile. Van has a disturbed night's sleep and is awakened on the beach by Diana.

4. "Spring Forward"

Van cleans Diana's house, discovering a broken china doll and a page from a Book of Tresum that she as yet can't read. The page, as revealed in the flashback, was given to Diana by her father shortly before her mother killed him. Her father also gave her the Book of the Sun House of Tresum. Van takes the page to Grace, who takes it away from her. Diana later discovers the page is missing and confronts Grace, who tells her she knows that the upcoming Solstice is a Libra Solstice.

Adam continues to spiral downward and the housemates stage an unsuccessful intervention. Van follows Adam, trailing him to a hot spring where Saint grows. She discovers, after returning to the hotel, that she can now read more of the Book of Tresum. She later learns from Grace that this is a result of the Saint, which Tresum practitioners call "starflower."

Bro casts a spell to learn details of Kevin's past, including learning about his first love, Derrick. Bro has Kevin tune up his car and gives him a bracelet in payment. Toby is incensed when he sees the bracelet and Van discovers it has a spell on it. Toby throws it into the ocean.

An out-of-control Adam ends up having sex with the members of the new private sex club and finally collapsing on the Hotel Dante lawn. Toby cares for him as he detoxes.

Diana and Ambrosius talk of the upcoming Libra Solstice, revealing that in three days one Tresum practitioner will gain power over time itself, to go back in the past to change one event. They plot to keep Grace from attaining power so Diana can go back in time to save her father and "save Tresum from Grace." Van returns to the spring and gains the ability to read Diana's Libra Solstice page.

Michelle, growing ever more tormented, confronts Van with a photograph of the two of them. Van denies knowing her. Michelle, distraught, walks into the ocean and drowns.

5. "The Solstice"

Derrick, Kevin's ex, arrives at Dante's Cove for his bachelor party.

With the Libra Solstice at hand, Van agrees to become Grace's Aspirant to gain the chance to save Michelle. Ambrosius makes another attempt to enchant Kevin through the use of the china doll, which has a powerful love charm on it cast by his mother. The charm leads Derrick to try to seduce Kevin and for Marco and Kai to have sex. Bro uses the charm to try to get Adam and Toby together, but Toby's true love for Kevin overcomes the charm. Toby destroys the charm by breaking the doll, but Bro uses his Tresum powers to control Toby. Ambrosius then threatens Kevin to become his aspirant or else he would never see Toby again, and he will hold him for all eternity. Ambrosius thus extorts Kevin into agreeing to become his Aspirant, binding Kevin to him with the recovered enchanted bracelet.

Grace and Van arrive at the spring before the others and together perform the ritual. Bro intervenes and attacks Grace. Grace and Bro each draw upon the strength of their respective Aspirants in the battle, but Toby interferes. Grace gains the upper hand and seemingly disintegrates Bro. Suddenly Diana appears and seems to destroy Grace. As Diana prepares to claim the Libra power to save her father and destroy her mother, Van beseeches her to give life instead of taking it, and Diana relinquishes the power to her, allowing her to go back in time to save Michelle.

The following day Michelle leaves for home. Bro suddenly reappears and claims Kevin, saying Kevin agreed willingly. The two vanish before Toby's and Van's eyes.

1. "Sex and Death (and Rock and Roll)"

Toby awakens from a nightmare vision of Van's apparent death. It is six months later and Kevin is living with Ambrosius. Bro is now a silent partner with Marco, having invested money to rebuild H2Eau, which was washed away in a tsunami that levelled the leeward side of the Cove. Brit is now seeing an antiquarian named Elena and studying the chaotic tidal patterns around the Cove. Kevin finally gets to see Toby away from Bro at the bar. Kevin claims to be happy with Bro.

The next morning, a burst of light from the sky deposits Grace on the shore. While walking to her estate, a man offers her a lift. He introduces himself as Griffen, or "Griff" for short, an Emissary of the Tresum Council. Griff tells her that he has come to see Diana. Arriving at her windward estate, Grace is shocked to learn that various Cove residents have moved in following Van's death and the destruction of the hotel. She allows the renters to stay until the end of the month.

Griff warns Diana not to try to correct the errors caused by her failure at the Libra solstice. Grace later confronts Diana, accusing her of causing the tsunami. Noticing Griff outside Diana's shop, Grace asks him why her powers are so weak. He tells her it's a result of her six months "in limbo" and that full control of her magic should return eventually.

At Bro's beach house, Kevin sneaks away and casts a spell that takes him momentarily to Toby. Kevin attempts to assure Toby that he wants to return, but Toby assumes it was a dream. That night, Toby is closing the bar when he is greeted by Michelle, who has returned to the Cove searching for Van. Toby tells her that Van is dead. Michelle explains that her parents were murdered by something evil. She asks both Toby and Marco if they might be able to help her perform Tresum spells to stop the evil but balks when either suggests asking either Grace or Bro for help.

Adam, still in love with Toby, has also been spending time with Trevor. Convinced that he will never have Toby, Adam has sex with Trevor. Later, Grace recruits Trevor to be her eyes and ears in addition to being her handyman.

Toby spies on Kevin with Bro at their beach house. He later mentions to Adam that Kevin seems genuinely happy with Bro, and seemingly agrees to end his relationship with Kevin.

That night, Diana, in defiance of the Council, continues to invoke Tresum spells. Griff arrives, repeating his warning to stop. Diana shrugs him off, forcing Griff to strip her of her powers.

Back at H2Eau, Marco tries to get Grace's attention. He warns her of a "dark force" in Dante's Cove, showing her the stone of his ring that darkens in the presence of dark energy, but Grace dismisses his concerns. He decides to go see Bro. He never makes it there, as he is attacked on the beach by a demonic-appearing Michelle.

2. "Blood, Sugar, Sex, Magik"

Michelle seeks out Diana for help in finding out who killed her parents. A powerless Diana initially refuses but later relents.

Grace discovers Marco's dismembered body on the beach and takes his mystic ring off his finger, experiencing an incomplete vision of his death. At Marco's funeral, Michelle embraces Brit to Elena's consternation. Grace tries to advise Ambrosius about Marco's warning, but he is unreceptive. Bro then announces to all attending the service that he will be taking over as owner of H2Eau.

Grace casts a spell to reveal Marco's killer, but it fails. She realizes that she needs a star flower and determines to get some from Diana.

That night at H2Eau, two clubgoers exhale a puff of Saint smoke into Adam's face. He experiences mystical visions before collapsing. When he comes to, he sees that Toby has remained vigilant for him. Toby accuses him of using again, but Adam angrily denies it, saying that though he does not want the drug, the drug may want him.

Kevin casts a spell on Bro which inadvertently kills him. He manages to reverse the spell, bringing Bro back to life. The next day, Bro attempts a spell on Toby which fails. He goes to Diana for an explanation, who points him in Griff's direction. Bro confronts him, but Griffen convinces him that he is not responsible for his problem. Griff later explains that Bro can replenish his energy by having sex with men other than Kevin.

Michelle and Diana begin researching ancient Tresum scrolls and share an unexpected kiss. Diana excuses herself to find more scrolls, and Michelle takes the opportunity to slip a few drops of her own blood into Diana's tea. Grace arrives demanding a starflower from Diana, who has none. Grace leaves for the spring. Diana calls out for Michelle, who hid from Grace and finishes the blood-spiked cup of tea. But Michelle has slipped away, and in her demonic form, uproots all of the starflower. Grace arrives at the spring later with Trevor to discover the shredded plant, but Trevor salvages a small sprig. Meanwhile, Brit discovers a mysterious chest during a late-night scuba dive.

Bro informs Toby that Adam is starting as H2Eau's newest bartender. Toby confronts Bro, accusing him of forcing Adam to work for him, but Bro denies the use of magic, or that he has any sexual interest in Adam. After Adam's shift ends, Toby tries to convince him to quit. Adam explains that his parents have cut off his allowance because he refused to leave Dante's Cove so that he could stay with Toby. Toby finally gives in, and he and Adam have sex for the first time.

Diana, drinking another cup of the spiked tea, reads in her scrolls of the same dark force that Grace, finally able to cast her to reveal spell, discovers—the House of Shadows.

3. "Sexual Healing"

Featuring a guest appearance by David Moretti

Diana is tormented by spectral voices. She angrily accuses Griffen of being behind them, but as the torment continues it is revealed that Michelle is the source.

Brit, Elena, and Kevin manage to open the box that Brit retrieved from the ocean but find it empty. Later, Kevin touches a symbol on the box's lid and experiences a rush of energy.

Bro decides to release Kevin from his bondage, but the very night he plans to do so, he discovers that Kevin has been stealing his energy. Kevin attacks Bro magically, and Bro flees to Griffen. Griffen teaches Bro how to draw upon the energy of others.

Grace tries to convince Bro to give her his Tresum Book of the Sun, but he denies her, dismissing her fears and the House of Shadows as a myth. At Trevor's birthday party, Grace learns of Adam's visions and entreats him to take Saint with her so she can share them. He refuses. After acquiring some Saint at The Lair, Grace secretly doses Adam and experiences his vision, confirming that it is the House of Shadows that is behind the disturbances in the Cove. Toby later confronts Adam, still high, and Adam denies knowingly taking Saint.

Kevin finds Toby at H2Eau, telling him "today's the day." Michelle seduces Brit.

Grace tries to convince Bro of the Shadow threat but he dismisses her, calling the House of Shadows a "myth." Grace then seeks out Griffen, who believes her visions of the House of Shadows but who will not align himself with her "rogue magic." The only way he will help her is if she swears allegiance to him and the Tresum Council. Initially, she angrily refuses but her growing fear later compels her to agree to become Griffen's Aspirant.

Bro, having drained several men of their energy, returns to confront Kevin. Kevin uncorks a potion that knocks Bro out and draws upon Bro's power to finally remove the bracelet.

4. "Like a Virgin"

Featuring a guest appearance by David Moretti

Michelle asks Brit to help her perform a Tresum spell, but because Brit is a scientist, she refuses.

Griffin and Grace complete the ritual in which she becomes his Aspirant. They "seal the deal" by making love.

Kevin approaches Toby and tells him he has broken free of Ambrosius' control. Bro meanwhile uses a locator spell to see Kevin with Toby, despite him no longer wearing a bracelet.

Michelle assaults Elena, who then hides out of sight just before Brit arrives on the scene, discovering her lover bleeding on the floor and screaming for help. Kevin and Toby hear her and suggest using magic to save Elena's life. Toby enlists Grace, whose powers have returned after the night's events. Grace discovers that the House of Shadows has taken a human host after examining Elena's injuries.

Kevin returns to Bro's home looking for the Sun Book. Bro tries to reenslave his former captive, but Kevin shrugs off his attempts. Later, needing more power in his desire to get Kevin back, Bro resumes his power-leeching rampage.

Grace manages to stabilize Elena, but she explains that she'll need either the Moon or Sun Book to get her completely out of the woods. Toby suggests getting Kevin to read the Sun Book (since Grace is a Moon Witch), but Grace says she'll need far more experienced help to perform the healing spell. Griff and Grace cast a reveal spell, confirming Grace's suspicions about the Shadows and finally exposing Michelle as their host. As they begin to alert the Cove residents of the danger they face, Grace tells Griff that she deceived him by switching the medallions for the allegiance ceremony, invalidating the entire ritual, meaning they are not aspirant/avatar after all.

Still posing as a sympathetic friend, Michelle rejoins a distraught Brit. She convinces Brit to join her in a spell using the Moon Book (which she has had for months) to heal Elena, but Grace arrives in time to drive Michelle away. Upon touching the Moon Book, Grace learns that Van was the first to fall to the Shadows.

At The Lair, Trevor stumbles upon Bro amid his indiscriminate draining rampage and becomes his latest victim. Griff and Adam arrive in time to save him from being drained to death.

The next day, Brit shows Grace the wooden box that served as the Shadows' ancient prison. Diana arrives, offering to join the effort to help trap them back inside of it.

Kevin begs Toby to run away with him but Toby turns him down. Just then, Adam arrives and Toby kisses him, setting off Kevin, who threatens to use magic to force Toby to be with him. Toby calls his bluff, making Kevin back down. However, he refuses to help them stop the Shadows and leaves.

Diana and Grace arrive at Michelle's house. She emerges to greet them in full Shadow form.

5. "Naked in the Dark"

Seemingly in preparation to defeat the House of Shadows, Diana asks Grace for her Tresum power. Grace reluctantly consents and her power is transferred to Diana, who incants a spell that draws the Shadows out of Michelle and into her instead.

At H2Eau, Diana forces the employees to kill each other and themselves. Ambrosius wonders what the commotion is, only to be greeted by a Shadows-possessed Diana. She attempts to kill him, but Bro manages to escape with the Sun Book.

Toby and Adam look for Michelle in her hotel room. They hear what seems like a cry for help coming from the closet. While investigating, Adam is pulled in by the Shadows and Toby almost is as well, but manages to break free. Toby attempts to rescue Adam and becomes infected by the Shadows.

Elsewhere on the Cove, Kevin is alarmed by entire buildings burning and runs back to Grace and the others. He offers to use magic to help the others stop the threat, but Grace rejects him as a novice. Toby arrives, fighting off the Shadows' attempt to fully infect him and take him over. Grace prepares to kill him but Kevin uses a spell to free Toby from the Shadows' influence. Grace and the other Cove residents are joined by Bro, now clearly convinced of the threat, and Grace persuades them all to regroup at Griffen's estate.

Bro attempts in vain to read the Sun Book's passage on defeating the Shadows, and then Trevor brings him the Moon Book. When the two books come into contact, they magically merge into a larger book which both Sun and Moon Witches can read. Bro tells Griff and Grace about the prophecy meant to stop the House of Shadows, which reads:

"A mighty Tresum master will level the playing field in the war against the Shadows. But only a virgin can deliver the killing stroke to close the Shadow portal forever."

Bro interprets this to mean that the box is the portal, he and Griff are the Tresum masters, and Grace is the virgin until she informs him that this is no longer the case, apparently leaving them all at square one.

Diana arrives, leaving the combatants unprepared to stop her. She immediately plunges the entire Cove into darkness. Trevor finds one of the doors open and becomes possessed by Shadows that used the opening to slip inside.

Grace belittles Brit's attempts to protect herself using common weapons until she realizes that Brit's refusal to use magic under clearly supernatural threats makes her the "virgin" in the prophecy, deducing that it refers to one untouched by magic rather than sex. Kevin becomes agitated by the others' back-and-forth debate on how to interpret the prophecy and stop the Shadows, but Grace sends him away. It is in this state that Diana uses a possessed Trevor to lure him outside in an attempt to stop her himself. When the others become aware that Kevin has been manipulated into confronting Diana alone, the three Tresum witches emerge from the estate and retrieve a weakened Kevin. Michelle arrives, claiming she knows how to stop Diana, and joins them inside.

Once again, the Shadows seem to emerge from within a closet. Brit and Toby hold the door shut until Toby thinks he hears Adam's voice from within. He opens the door and is sucked in, joining Adam in the Shadows dimension.

Diana enters the estate, prompting the three witches to attempt to reimprison the Shadows inside the box, without success. Brit attempts to sneak up on Diana and stab her, but Diana spots and repels her before she gets close enough. Finally, Michelle uses the knife in Brit's hand to stab herself and grabs Diana before falling to the floor. Michelle was correct in surmising that since the Shadows arrived upon her resurrection, she must die for them to be cast out. With Michelle dead, Griff, Grace and Bro succeed in trapping Diana and the Shadows in the box. With the Shadows gone, daylight returns, Elena awakens and is reunited with Brit and Trevor returns to normal.

Griff plans to return to the Tresum Council and deliver the box to them, but Grace reveals that she is pregnant with his child. Griff forsakes his allegiance to the council to stay with her to raise their baby. Kevin, having lost Toby, decides that he wants to stay with Bro, of his own free will for the first time. As the two kisses, Toby and Adam are seen banging on the other side of a mirror in their bedroom, screaming for help.