Beautiful Kay Parker plays an investigative reporter with Expose Magazine who is assigned to write an article on a new health spa famous for its program of Sexercise. Behind the guarded doors she is lead into an erotic underworld teeming with turned-on adults. Everywhere she looks bodies are intwined in a lusty search for passionate ecstasy, unaware of anything except the discovery of new ways to achieve sexual fulfillment. Through a bewildering series of sensual encounters with a variety of partners, and a fantastic display of unusual erotic techniques, she realizes that sexercise is here to stay.