La derniere nuit (1976)
As the world slides to nuclear war and bombs explode in the background, the de Courvals have their family problems, but become increasingly uninhibited. Juliette is uninterested in her husband. Armelle is in love with him but he wont look at her. She spies on her flatmate having sex with a man, then kicks him out. The son of the de Courvals is caught masturbating by his tutor, Patricia, but she undoes her dress and masturbates as well while remembering an encounter with Thierry de Brem on a yacht (probably archive footage). There is a dinner party and Juliette cools herself against a fan, revealing her knickerless state. The son is caught masturbating under the table cloth and sent off to bed. Then the rest of the party adjourn to watch a porn film. It turns out that Richard features in this film and he almost leaves, but returns. Alex is turned on enough to begin to grope Patricia, and she remembers a threesome with Thierry and another male. Armelle almost masturbates and then, disgusted as the porn film reaches the point where two girls take a facial, she rushes to the bathroom. Alex goes to console her and she offers herself to him we see a fantasy sequence but he turns her down. But back in the main room Juliette and Patricia have leapt on Richard. Alex and Armelle join in and the butler is conscripted to make up the numbers. The son has dressed up in drag and watches from a balcony and then joins in.