Rosemary Is Pregnant Again (1969)

Rosemary, the young daughter of a swinger-club owner, is pregnant, and looking for her philandering husband. A club member dies in a freak accident during an initiation ceremony, and is buried during an impromptu funeral. Characters engage in a full spectrum of various erotic encounters, straight, gay, lesbian, and everything in between. The buried man latterly shows up, naked and freezing, having been buried alive. A truly bizarre soft-sex feature which is feared lost.