1954 film by Jean Boyer

The manager of a firm has a very unusual idea : asking his employees to pose as gangsters and to hold up a bank before returning the stolen money and pocketing the reward. But things do not go according to plan and the phony thieves get stolen in their turn. They have no other choice than turning into amateur detectives to be able to pay back the stolen dough.

A simple man gets involved in an implausible story of gangsters in the wake of the discovery of a criminal's dead body in his own bed.

To conceal his nighttime infidelity from his wife Gisele, Pierre calls in a particularly shady private detective to concoct an alibi. He is introduced to a certain Robert Crémieux, who will pass himself off to Gisèle as a childhood friend with whom he spent the night until the early hours of the morning. The so-called childhood friend turns out to be a delinquent accused of burglary and rape on the very night he was supposed to be with Pierre. Pierre is immediately suspected of being his accomplice and, trapped by his own turpitude, arrested. Entangled in his lies and denials, he has to admit his infidelity to get out of the impasse.

Summoned by his mother to plead, a very young lawyer has a trio of pathetic criminals acquitted. The daughter of one of them reveals to the lawyer that the three accomplices hoped to find food and board in prison. For the beautiful eyes of the young girl, Master of La Bastide attaches the three rogues to his service. Disasters, confusion, clumsiness follow one another until the planned wedding.