Being Human: Season One

At first sight there doesn't seem to be anything out of the ordinary about flatsharers George and Mitchell, but both harbour dark secrets. Once a month, geeky hospital porter George is transformed into a rabid, flesh-tearing werewolf, while womanising, man-about-town Mitchell is trying to forego his blood-sucking vampire instincts. As they take the keys to their new home, the boys discover that their flat has another occupant - lonely ghost Annie, who died in a car accident days before she was due to marry her fiance.