It may seem like a good ghost buster can charge what he likes and enjoy a hell of a lifestyle--but there's a risk: Sooner or later he's going to take on a spirit that's too strong for him. While trying to back out of this ill-conceived career, Castor accepts a seemingly simple ghost-hunting case at a museum in the shadowy heart of London - just to pay the bills, you understand. But what should have been a perfectly straightforward exorcism is rapidly turning into the Who Can Kill Castor First Show, with demons and ghosts all keen to claim the big prize. That's OK: Castor knows how to deal with the dead. It's the living who piss him off...

    Except, as Peter and Helen Radley know but their children have yet to find out, the Radleys happen to be a family of abstaining vampires. When one night Clara finds herself driven to commit a bloodthirsty act, her parents decide to explain a few things.