Dr. Jackie Stevenson is a gorgeous sex therapist who believes the female psyche is pure but lustful. Alone at night in her lab she has developed an experimental sex serum that frees women from their psychological and sexual inhibitions. Firstly she tests the serum on a naturally stunning woman (Misty Mundae), who immediately becomes a maniacal love machine who seduces the Doctor in the lab. Turned on by the encounter, Dr Jackie decides to experience the effects of the serum herself. It transforms her from a somewhat inhibited woman into a stunning and sensuous vixen who craves endless erotic satisfaction with both boys and girls.