Contemporary supernatural drama about George and Mitchell, a pair of perennial outsiders. Working in the anonymous drudgery of the local hospital, they live lives of quiet desperation - because Mitchell is a vampire and George is a werewolf. Deciding to turn over a new leaf, they move into a house together, only to find that it is haunted by Annie, the ghost of a woman killed in mysterious circumstances. As a threesome, they deal with the challenges of being supernatural creatures, bonded by their desire to adopt the lifestyle of their neighbours - humanity.

Pilot Episode cast differs from series 1: Guy Flanagan, Russell Tovey (remains in Series 1), Andrea Riseborough, Claire Foy, Dominique McElligott, Dylan Brown

Lucy and Mal Woodeson want to move into a new flat together. However the ghost Annie Sawyer already lives there. Annie doesn't want Lucy and Mal to live there and scares them away.

George Sands is on a holiday. There he meets the student Andy. They go on a walk and are attacked by a werewolf. Andy dies and George becomes a werewolf.

Herrick and Mitchell sit in a car with a woman called Sherly. They have celebrated and Herrick wants Mitchell to drink Sherly's blood. Mitchell however sets Sherly free.

Ivan and Daisy are in Singapore. There they meet Hetty who tells them about Mitchell, George and Annie. Daisy is curious about the trio, so Ivan and Daisy deceide to go to Bristol to meet them.

Adam, the 46-year-old vampire in a sixteen-year-old's body returns to school, where his attempts at banter referencing 1980s pop culture fall flat.he does befriend Christa, whom he recognizes as a werewolf though she is in denial. Only they can see Matt, the tubby ghost of a boy who went missing.Adam knew that he was murdered and his killer be exposed before he can pass on. The chief suspect is school bully Danny whom Matt terrorizes with his psychic powers but admits it was only for revenge because he is sure the boy is innocent. Brandy Mulligan, self-assured and glamorous sixth former, however, is from a family of gangsters, known for their murderous habits.

The trio pursues Brandy but Matt remembers that he was killed in the boys' toilets and he is sure she was not there. Then they learn that sadistic sports master Swan wants the toilets completely cleaned and painted but before they can gather evidence Christa becomes a werewolf, sniffing out the location of Matt's corpse. They find themselves facing the killer and the door appears for Matt to pass through. But will he go now that he has found his new friends?

In the school laboratory Adam and Christa see a tubby boy called Matt, for whom there are Missing posters. Only they can see him so he is plainly a ghost. he believes he was murdered but cannot remember who did it. As Christa and Adam ponder aloud teacher Mr Roe suggests they try Brandy Mulligan, a girl whose family has criminal connections.

Brandy Mulligan seems a likely suspect as Matt has recall of being in a girls' changing room so Christa and Adam pursue Brandy, pointing out that they know she is a member of the notorious Crompton family. Brandy is hostile but Matt suddenly recalls that he saw her leave the changing room so that she cannot have killed him.

Matt remembers school bully, Danny, holding his head in the toilet but again cannot recall if this was his last memory. Adam and Christa are concerned that they might be wrongly seen as a couple but are interrupted when they see Mr. Roe argue with another teacher Mr. Swan, whom Roe accuses of being a bully himself. Christa tumbles to the fact that CCTV in the boys' toilet might give them a positive answer about Danny.

CCTV footage leads Adam and Christa to the gym, where they hide in the vaulting horse as Swan comes in and vigorously attacks a punch-bag. He is aware of their presence but when he discovers them they pretend to be passionately kissing. Matt, who fancies Christa, gets the wrong idea and has to be told they are acting in his interests. A full moon is due soon and werewolf Christa feels this may be to their advantage.

The trio becomes certain that Matt was killed in the gym and Christa, transforming into a werewolf, is convinced that her heightened sense of smell will lead her to the body and thence to the murderer. For his own safety Adam has to lock her in a cupboard but next morning after she has changed back they make a discovery.

The trio discovers Matt's body in the cupboards containing the gym equipment but they are interrupted by the actual killer, who explains their motive for murdering Matt. There is a fight, during which the killer passes through the door intended for Matt, who now considers staying around with his two new chums.

Tom is interviewed for a job in a small cafe in Barry. The questions may seem routine enough, but the answers tell an entirely different story.

It's 1955. The werewolf Leo is forced to fight against humans. He has already killed five humans when the vampire Hal Yorke enters the room. Leo tells Hal that it is the last time that he has killed humans and that the next times he would let the human kill him before he turns into a werewolf. Hal however also does not want to kill anymore. Leo suggests that they could support each other.

In the dead of night, across a cold black ocean, a container ship carries its precious cargo from Bolivia to Barry. The Old Ones are coming.

At last, the Old Ones have arrived and first thing on Snow's agenda is to learn all he can about Annie, Hal and Tom before he and Milo can prepare for the begining of the end.

Hal, Alex and Tom sit in a restaurant and talk about their future.