Malibu Hot Summer(1981)
John Logan is a poor little rich boy. He learns to love from three nubile L.A. newcomers that will do anything to be introduced into the sizzling nightlife of the City of Angels. Portraying the Malibu beach life by day, and the L.A. club life by night, Sizzle Beach U.S.A. is a stunning insiders critique on the sex and drug lifestyle of the West Coast swinger scene in the early 80s.
This is a trailer for the movie's release under the title "Sizzle Beach USA".