"Le Dabe" retired many years ago and now he lives in the Tropics where he owns stables and horses. He is a very rich man. He was the king of all money counterfeiters. He is contacted from Paris to organize a new job. He says no. But when he finds out the the currency that should be counterfeited is the Dutch florin, he accepts immediately. He retired after having counterfeited 100 florin notes just before the Queen Wilhelmina retired them from circulation. He flies to Paris. But the gang is not to be trusted, at least not all of them.

During an evening in a bar, Roger, a friendly cognac salesman and connoisseur, overhears a telephone conversation that intrigues him, then worries him: "... a few bullets to the head and she'll be dead in a minute...". Distraught, Roger follows the stranger who has taken his car. A relentless pursuit ensues. Roger arrives at a mysterious property where the "assassin" disappears to commit his crime. Knocked unconscious by the killer he fought and prevented from carrying out his crime, Roger regains his senses, comfortably installed in the living-room of an old colonel, Colonel Van Booren.

Emile is a steelworker in a car factory ;a confirmed bachelor going on fifty, he leads a peaceful life .One night, he is woken up by a burst of machine gun fire. The cafe in the corner of the street has been burglarized.A distraught young girl rushes into his apartment building and hides in his room .When the police make a search, he makes her out to be his lover for the night.Madeleine tells her about her sad past : she has severed all links with her parents ,she's an unwed mother and in the underworld's clutches. Emile sends his protegee to old mommy Dupont's place ,in the suburbs of Paris.

Married French lawyer Andre defends succesfully the case of Yvette, who committed a robbery. He falls in love with her, but she isn't true to him.

Catherine, 18, loved Jean, a young accountant, who loved her in return. And yet, one morning, two policemen find their dead bodies on a stretch of waste ground. The case is obvious: the two young people have killed themselves. But why? Chief Inspector Ernest Plonche, feeling upset, decides to investigate personally.