Director: Steve Scott (1980)
Starring: Starring Jack Wrangler, Joe Roberts (gardener), Darla Lee (wife, non-sex role), Eddie Summer (husband), Danny Wolf (chauffeur), Serge (houseboy), Gary (actor) Produced by William and Edward Higgins.
Drifter Jack Wrangler gets picked up by gardener Joe Roberts; while having sex in the garden of a mansion, the wife discovers them, and is about to fire the gardener. But the gardener has witnessed (and participaited in) sex with her husband, and reveals this (and we see the scenes) in order to save his job.
Original song Smoggy City written and performed by Jack Wrangler