La Difficulté d'être infidèle (1964)

Olivier and Françoise, newlyweds, have Chantal at their service, whose main function is to pretend to be his boss, while she takes care of the housework. But Olivier is suddenly tempted by an extramarital affair with a young Italian woman, Frédérique. Pretending a business trip, he sends his wife and maid to their respective mothers, intending to bring Frédérique to his home...