While Henri Laurent speeds along on the racing circuits, his pretty wife Françoise goes from luxury boutique to luxury boutique with her best friend Denise. One day, Denise lets her know that Henri has a lover. Outraged, Françoise moves out of marital home and rents a maids' room in Rue de l'Estrapade. Henri tries to get his wife back but Françoise does not listen. She even looks for a job in a prêt-à-porter shop and lets herself be courted by Robert, her neighbor across the landing...