Femme fatale Madeleine Robinson is married to Raymond Aimos, a coal miner with a face like a pickled walnut and a libido to match. She wants some action, and what she can’t get from her impotent husband, she looks for elsewhere, first with his best friend Pierre Brasseur, then with his boss Lucien Gallas, who is also dating Brasseur’s kid sister Odette Joyeux.

At trial the prosecuting attorney makes a startling confession: the defendant is his son whose pitiful fate led him to murder. The attorney left the young man's pregnant mother, and the unwed poor thing had to fight against a hostile world.

A man is accused of the murder of a banker in order to get some money. In the meantime, the banker's wife is somehow convinced that she killed her husband after a violent fight to save her child's honor. But the actual murderer happens to be a third party.