Paul Toombes (Vincent Price) is a successful horror actor whose trademark role was Dr. Death, a skull-faced sadist. During a party in Hollywood showing off his fifth ''Dr. Death'' film, he announces his engagement to Ellen Mason (Julie Crosthwait), who gives him an engraved watch as an engagement gift. Later that evening, however, adult film producer Oliver Quayle (Robert Quarry) reveals Ellen had worked for him previously. Distraught at Toombes' angry reaction, Ellen returns to her room, where a masked man in dark garb, similar to Dr. Death's attire, approaches her with a knife. An apologetic Toombes comes in shortly after, only for her severed head to fall from her shoulders. Though he is acquitted of the crime, Toombes' career is destroyed as he spends several years in a mental hospital, where even he is not sure whether he killed Ellen or not.