Grisou.

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.