Celestine, the chambermaid, has a new job in the country, at the Lanlaires. She has decided to use her beauty to seduce a wealthy man. But Mr Lanlaire is not a right choice: all the house is firmly controlled by Mme Lanlaire, helped by the strange valet Joseph. Then she tries the neighbour, ex-officer Mauger. This seems to work. But soon the son of the Lanlaires comes back. He …