Between eleven o’clock and midnight one evening, a notorious trafficker Jérôme Vidauban is shot whilst walking in a tunnel in Paris. The case is assigned to Inspector Carrel, who is Vidauban’s perfect double. Using his resemblance to the arch criminal, Carrel manages to infiltrate in Vidauban’s circle of acquaintances and contacts. He becomes embroiled in a bizarre web of intrigue and discovers no shortage of possible murder suspects, all of whom appear to be surprised to see him still alive.

In Paris, three models are murdered, being one of them the mistress of the fashion designer Dominique Airelle. It is the young inspector who is in charge of the affair.

During the Second World War, Georges Masse undergoes a dangerous mission by taking secret documents from Tangiers to London.

L'Ange rouge is a cabaret run by a former mobster with his friend, a singer and dancer he brought back from Argentina. A fleeing gangster takes refuge in the cabaret. The singer and the gangster have an affair.

The life of a weak-willed man is thrust into a downward spiral by the scheming of his manipulative girlfriend and her mother.

Evanella, who writes the “Horoscope” section of a major newspaper, and her brother Méristo, create with the help of a young journalist, Jean Lassère and the capital of their uncle Amédée, a “Bureau des Prédictions”. Success being expected, they manage to obtain revelations about a gang of gangsters which they publish as predictions. It is success and fortune. Jean marries the newspaper director's daughter and Evanella the director himself.

Although suspected and hunted down by policeman Sherlock Coco and inspector Hector, the Pieds Nickelés (Croquignol, Filochard and Ribouldingue) manage to save the legacy of Monsieur Miradoux, who will be very grateful to them.