Synopsis: Christopher Lee is a man with a problem. He is Count Ludwig von Karnstein whose family lives under a curse placed by one of his ancestors before she was executed as a witch; one of her descendants will be a reincarnation of the evil woman. Von Karnstein (Lee) has been researching records to find the hidden tomb of his evil ancestor as part of an attempt to stop the curse. But it's soon apparent that the curse has played "Tag, you're it!" with someone, making them a vampire. Vampire killings begin and Count von Karnstein soon has reason to fear that the vampire is his own daughter.