During a birthday party at a country house, the protagonist Nicolas, a confident and stylish man in his thirties, attempts to flirt with his former flame, Sandra. However, Sandra arrives with her lesbian partner, Claire.
Claire and Sandra are dominant, uninhibited women who enjoy BDSM. They see Nicolas as an annoyance and decide to humiliate him during the party. Playfully and cruelly, they arouse and masturbate him, leaving him embarrassed with semen-stained pants.
Nicolas, a macho salesman, refuses to accept defeat. Determined to get revenge and regain control, he arranges another encounter with the two women while on a business trip.