Henri Verdier, a young bank manager, has made the acquaintance of Karine, a model of great beauty. Robert, who claims to be Karine's brother, forces Karine to introduce him to Verdier. This is to offer him an urgent business deal: 50 million for a uranium purchase which, within a few days, should yield double that amount. Blinded by passion, Verdier accepts and "withdraws" the necessary sum from his bank. He soon realizes he's been duped. Karine is not Robert's sister and Robert is a crook. Verdier tracks them down.

The Marquis Rodolphe de Sombrueil accidentally runs over a working man with his carriage and helps his widow -- unjustly accused of robbery -- to find her missing daughter.

Servais Mont, a freelance photographer who works taking compromising photos, gets fascinated by Nadine Chevalier, a tormented low-budget movie actress married to an eccentric film photo collector.

Alphonse Tram is unwittingly involved in several murders despite having no memory of committing the crimes. His confusion lead him to confess to his neighbour, Inspector Morvandieu. Alphonse and Morvandieu become the axis around which murders occur.

Didier Formenter, the French scientist, has just put the final touch on an invention that will be able to destroy to destroy any sort of flying apparatus. An international crime gang is very interested in stealing this equipement to sell it to the higher bidder of lawless nations. Menaced, the scientist, who was friends with Nick Carter's father, calls Nick for help. At Nice airport, Nick Carter escapes death, but that night he is unable to stop Formenter's murder. He suspects Bruno, Formenter's adoptive son, and Tonio, the owner of a bar near Formentier's home. Bruno is actually after Formenter's heritage, and for that he tries to kill Catherine, Formentier's granddaughter. Therefore, Nick Carter finds himself against more than a gang, but he will uncover the plots, in time to break every gangster apart.

A Las Perlass, ville de jeu du Névada, bandes rivales de Lippy et de Steinberg tiennent les plus beaux établissements de l'endroit. Franck Bradford has hired Jeff Burlington as a comedian, who, to cheer up a difficult audience, launches nightly verbal attacks on Lippy's casino where, he says - the games are rigged. Each of the two gangs sends a henchman to either stop the sarcasm or get in trouble if they don't leave their act as it is. Un certain "Main d'or" qui est autre que Bradford fait attaquer casinos. C'est Jeff, après avoir été kidnappé par les deux bandes devenues amies, quiasquera coupable.

All the inhabitants of an old house are swindlers, dreaming only of the big score that will enable them to survive an announced eviction. They end up pulling it off together, by building a fake tollgate.

The most secret agent Stanislas Dubois, tired of saving the world alone decides to retire and to start writing his memoirs. The enemies of humanity, progress and peace in the world found out about it and created an international network of espionage "13 columns". Unfortunately they platted a slot in the good old France. They should think better...

Léopold, valet de chambre to the avocat général Maître de Royssac, starts studying the penal code and, during his leave, becomes a judge in a "middle" court. His decisions are recognized as final. Léopold falls in love with Agnès, engaged to the two-faced Doctor Ventoux, who becomes "Le chat" when he plays the gangster. Léopold will help "Le chat" pull off the heist of the century, if he remains free to court Agnès. "Le Chat" doesn't play along. A fight breaks out between Léopold's gang and "Le Chat's" gang. The law must prevail.

A story about two girls who grew up as sisters, were separated and finally met again.