During the Occupation, Cora takes the place of her dead husband at the head of a Resistance network. One evening, she sympathizes with Bernard, a Swiss journalist. However, he is actually an undercover German officer who is close to the man ordered to find her using an Identikit picture...

The wealthy industrialist Alain de Narbois has disappeared. Michel Dunant, an idle man who passed by and who looks exactly like the deceased, is taken for Alain by a young woman and her servant. He jumps at the chance but quickly realizes that, in this hushed little world, masters and servants play comedy and know very well that he is only a double of Alain. In fact, the industrialist was assassinated.

The holdup of the bank is a success. All happened according to plan. Now, Cyril Gad and his four accomplices must secure an alibi. What better place than a prison cell? As a result the five gangsters have themselves arrested on minor charges and start waiting until they are released. Unfortunately three of them die mysteriously, another one is openly murdered. The only man still alive, Tony, is scared. Easy to understand why...