Ghost Alex is adjusting to life after death with werewolf Tom but vampire Hal is in hell. Not because he’s chained up like an animal, but because he’s desperate to get his marigolds on the messy house. But when Tom and Alex decide to set him free, Hal’s wracked by uncertainty…can he control his bloodlust? Things get complicated with the return of Mr Rook, the shady figure whose government department protects the world from supernaturals.
Alex discovers she's not the only ghost haunting Honolulu Heights as she discovers Oliver, a witty, sophisticated but largely racist and offensive ghost called hiding a terrible secret. Meanwhile, Tom and Hal go head-to-head in the hotel's Employee of the Month competition, much to the delight of Captain Hatch, who feeds on werewolf/vampire conflict.
When Tom meets minor TV personality Larry Chrysler, he’s inspired by Larry’s lifestyle and goes about learning how to be successful from his new mentor - but is Larry everything that he claims to be? Meanwhile, Hal is dressed to impress and secretly off to meet an old friend called Lady Mary (Amanda Hale). Alex’s curiosity gets the better of her and she sneaks off to follow Hal, but soon discovers some worrying similarities between herself and Lady Mary.
Crumb has found his bloody way in the world with a new pal in tow. When Rook approaches Hal to get them under control, Hal is unable to refuse: he owes Rook a favour after all. But that’s not the only favour Rook asks: he wants them to look after Bobby (Ricky Grover), a werewolf who has been under Rook’s care for a very long time. The task falls to Tom and he has his work cut out for him reintroducing Bobby to a world he’s long forgotten.
Tom falls for a damsel in distress called Natasha, when she runs into the hotel looking for a safe haven. But Natasha comes to the attention of Hal for a darker reason, when she offers him a way to control his bloodlust and prevent him from killing innocents. Meanwhile, Alex is positive there’s something suspect about hotel resident Captain Hatch. But the more she investigates, the deeper into danger she gets.
Hal is ready to return to his hedonistic vampire ways, now he has built an army and has feasted on blood. Whilst Tom is set on killing him as an act of revenge. The trio have to battle the devil and Captain Hatch, who has Alex trapped and who also has managed to regain her strength. Hal, Tom and Alex do battle with the Devil in order to save the world. After defeating the devil all three are granted humanity as their curses were all a result of the Devil's Power. Alex, Tom and Hal sit down to watch television whilst talking about how Alex will approach her family and the trio's futures together.