A one-night stand with an entertainer threatens to destroy a woman's marriage after she gives birth to a black child.
Harsh Parisian judge Gaetan (known as Monsieur Maximum), chafing in the idleness of retirement, leaves for a seaside holiday. But Gabriel the chauffeur has his mind on his girl, not the car; Gaetan and wife Nathalie are stranded in the country, where they find shelter in a low class bistro patronized by cheerful jail birds. Once the ice is broken, they have a wonderful time, but as the judge tries to trick his new friends into reforming, inevitable exposure approaches...
Paul Braconnier and his wife Blandine only have one thing in mind: to find a way to kill each other without risk. After listening to a radio show, Paul decides to go to Paris to meet a famous lawyer in the acquittal of the murderers. He tells the lawyer that he killed his wife. The lawyer asks Paul to reconstruct the circumstances of the drama. Without knowing it, he explains, in spite of himself, the way for Paul to murder his wife by putting the odds on his side to avoid death penalty or even be released...
