This botched attempt at a horror/comedy stars Niven as the title character who, in modern times, has had to resort to guided tours of his castle to lure new victims into range of his fangs. He rents his castle to Playboy
magazine for a photo shoot with some of its bunnies. Seeking to
revive his long-dead mate, he gives her corpse a blood transfusion from a beautiful black victim. The experiment works and his love is revived, but her skin has turned black and she comes out of the coffin as Teresa Graves. By the end of this ridiculous film, Niven, too, turns black.