Harold is a vampire in a world where creatures of the night are second-class citizens. Forced to enter a bizarre therapy program as a spy, Harold must navigate the dangers of working with the government and dealing with a deranged maniac to survive.Vampires, zombies, and werewolves are mysteriously disappearing from a group therapy program designed to help them live normal lives. Unable to figure out where these unwanteds have gone, the government enlists the aid of a supremely unlucky vampire named, Harold, to join the group and spy on its founder. As he stumbles through this strange mystery with an alien slug for a partner, Harold learns about a black market world of gambling, blood brokering, and corporate experimentation.