Barbara, a frustrated writer who is also sexually frustrated, seeks to recharge her life by moving into a Manhattan apartment, where she earns money typing up manuscripts for other writers. Next door, a sexy young lady plays a variety of erotic games revolving around her hypnotically humming vibrator. When Julie, Barbara's hot-to-trot sister shows up, she reluctantly allows her to stay, even though memories of incestuous girlhood explorations between them cause her obvious distress.

Anthropologist Laurie suggests her frigid friend Vera get sex therapy which opens up the floodgates when multiple women (including the anthropologist's sister and a sex therapist) find themselves drawn to the husband.

Henning is a fashion photographer driven by visions of artistic glory. He is encouraged by a literary agent to produce a volume of erotic nudes and works to create the perfect layout with his favorite model, Leslie. All seems to be going well until the mysterious Joyce appears; dark and sensual, Joyce plays games with the photographer's ego, driving a wedge between Henning and Leslie and seducing one of his other models. Blinded by his own ambitions, Henning is unable to see the ruinous web that Joyce is weaving

During a cataleptic fit, Montel is buried alive, a burial plotted by his greedy wife Sofia with several men, including her lover, Montel's doctor. Exiting his grave, Montel goes on a sexual rampage.