The Rejuvenator | 1988
Former movie star Ruth Warren is desperate to restore her youthful beauty. She pays Dr. Gregory Ashton to develop a serum that reverses the aging process and willingly becomes a human laboratory rat, taking trial rounds of the serum. Ruth is unaware that Ashton robs the brains of dead bodies to get the chemical needed for the formula. The side effects of this substance prove monstrous for Ruth who resorts to murder in her lust for human brains.