Constance Money's the "Mary!" of the title, though this film can't make up its mind, despite the title, whether it's about the sexual adventures of Money or the deal boyfriend John Leslie makes with the Devil ("Andre the Arranger") for some cream that keeps his cock perpetually erect and slow (well, not that slow) to cum.

Besides the underwater photography in the opening scene, things to watch for include Sandy Pinney (credited here under a different name, as are most of the cast) giving Leslie a b.j. under his desk while Leslie's brother tries to coax him out for some lunch; the girl/girler between Money and Sharon Thorpe, which turns into a threeway when a lisping Ed Pastram joins in; a hot missionary bounce between Thotpe and Leslie, and the concluding orgy where everybody dies (plus, we think Rod Serling would have been interested in the music stolen, er, chosen for the final footage).

Viewers will probably have their fingers on the fast-forward during the car chase and some other parts, but the heat generated by Money, Thorpe and Pinney are enough to pull the rating up a point or so.