Miriam Blaylock is a beautiful rich woman. She is also a vampire who owes her longevity to her lovers, who in return get a promise of eternal life- All of them feed on blood of strangers. Attractive cello player John has been with Miriam for two centuries, but he suddenly starts to notice signs of accelerated aging. He realizes that the promise of eternal life does not mean eternal youth and asks for help from a doctor who specializes in researching ageing.