A young woman has a perilous affair with a General from the opposing side during the Revolutionary war.

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...

Rich industrialist Jacques Decret learns his wife Gloria is having an affair with a young actor. For revenge, he bombards her with anonymous letters, convincing her that her lover is the culprit while Gloria desperately seeks a way out.