Rusty (the sensual brunette stripper) and Ion (the groovy, energetic black non-stop humper) they set out on their journey to a secluded mountain camp to photograph an astrology-oriented sexual lay-out. While on the freeway on the way to the camp, the grass flows freely and Rock busies himself on top of Eve. This hilarious sequence shows the reactions of several "straight" passers-by who have an incredibly clear view of Rock's activity. One middle-aged man becomes so wildly "turned on" while watching that he forgets himself and runs into a pole.

Billie and company finally arrive at the camp and are greeted by Creighton, an eerie, often funny caretaker with strange sexual fantasies. They busy themselves around the picturesque countryside, shooting acts of intercourse in dozens of unique positions. Many of the events which take place are seen from Sloan's distorted, colorfully erotic, drugged point of view.

After the day's shooting, the group gathers in their cabin for a wild party. Rusty begins a breath-taking, rhythmic "dance of erotica". The party activity reaches a fever pitch. Suddenly, Rusty's ecstatic movements become a macabre "dance of death" as she ominously freezes and falls to the ground. While the others stand helplessly, a voice from a hidden tape recorder greets them. They learn that they are to be the guests of a sinister unseen host who calls himself Zodiac; and that they are to die, one by one.

The group panics as the avenues of escape are cut off one by one. Creighton is found dead. Zodiac mockingly speaks to them once more, reminding them of their fate. As they feel the creeping fingers of death closing in on them, they frantically seek refuge and escape in violent outbursts of sexuality. The murderer could be any one of them.

Eve and Billie cling to each other on a haystack in a tragic, absurdly classical moment of happiness. The murders continue. The film reaches a surprising, lavish, revealing climax which includes a staggering, slow-motion rape sequence and an awe-inspiring dream-like orgy in which the murderer is confronted sexually by all of his victims.

This film displays a captivating blend of realistic sexual honesty and offbeat campish melodrama. Also included in the film: an original musical score from a soon-to-be released soundtrack album which features Don't Just Lay There, "Five Fingered Lover", "Humpin', U.S.A.", "If I Should Spread Before I Die", "Ecstasy in Death", "Play Another Lick For Me", and other exciting music from the film, definitely the best music, lyrics, and score ever created for the Wildest, Funniest, Sexploitation Film of any year.