Starring Charlotte Rampling, Anthony Higgins, Diana Quick, Christopher Hovik, Victoria Abril, Pierre Etaix, Fabrice Luchini, Bernard Haller, Nicole Calfan, Sabine Haudepin, Milena Vukotic, Anne Marie Besse, Bernard-Pierre Donnadieu
Peter is a British diplomat posted in Paris. He is told by a detective that his wife, Margaret, has rented a flat in which she spends quite a few hours with a presumed lover: he finds her in bed with a chimpanzee called Max. To show that he understands, he suggests that Max move into their apartment. They leave together peacefully until Max runs away. When he returns, Peter tries to find him another mistress but the monkey turns up his nose at each one and then, consumed by jealousy, tries to kill him. Things go from bad to worse; the neighbors report them and the police get involved. Max ends up at Vincennes zoo where Margaret and Peter visit him every Sunday.