Marie, trim bordering on skeletal, is married to only slightly dull François, who wants a 2nd child, (Marie doesn't but doesn't know why) (the 2 year old son comes up with some of the best acting in the film - how do they get them to do it?).
In the course of her work as an encyclopaedia sales person (echoes of Paper Moon) Marie meets Bill, a big black American who lives alone in a villa and seemingly never goes out.
She is simultaneously intrigued and put off by his large direct presence. Gradually the intrigue wins and she overtly seduces him (echoes of Belle du Jour). Mind blowing, graphic, complicated and frequent sex ensues.
It seems as though what Marie is getting from the relationship is more important to her than her husband (desolate), child (confused and weepy) or invalid mother (disapproving, though at least seems to show a flicker of understanding when Marie explains the attraction of sex with Bill being that Bill "invades" her).
The story fairly bowls along and Ann Coesens (Marie) is riveting throughout. The best acting in the course of sex I have ever seen.
The sex is not at all pornographic, actually - although pretty graphic, it serves to explore Marie's motivation rather than titillate.
Bill is something of a cypher: the figure of Temptation. Marie is given much more space to develop than any of the other characters - but Cousens' performance fills the screen.
Recommended.