Filmmaker Claude Chabrol stirs a boiling pot of lust and violence in this tense portrait of class struggle. Wealthy Frederique (Stephane Audran) meets Why, who's meandering around Paris, and takes her to glamorous St. Tropez. Frederique becomes her mentor, teaching Why how to maneuver in high society. But when Paul (Jean-Louis Trintignant) arrives, both of them fall for his charms, leaving one in love and the other rejected.