At The Quiet Father, where the Ménards gather, nothing rejoicing is going on. Henri, the boss, sulks. His sister Betty sips. And Denis, the waiter, books... But tonight everything changes when the mother arrives accompanied by Philippe, the third member of the siblings, and his wife Yolande who is celebrating his birthday. Routine has been made up for a series of account regulations that will upset the established family order. "A bold troupe. We laugh, we identify, we sympathize.