Pierre Apestéguy

Haute Couture model in Paris becomes involved in the activities of two rival jewel thief gangs.

Murderous foreign agents are after a scientist who has invented an atomic engine that could change the future of rocketry.

Bastien du Boccage is a repeat offender: hasn't he been sent to jail no fewer than six times? But he is no ordinary criminal mind you. As a matter of fact he is a newspaper editor and should have no problems with justice. The trouble is that he has a sister, Lucrèce, who is agony aunt in his newspaper and who tends not to mince her words. To make matters worse, Francine, his daughter, has fallen in love with Bruno, a penniless student and Lucrèce is prepared to do anything to prevent her marriage..

To protect him, Georges takes the place of his twin brother, Jacques, suspected of murdering an aircraft manufacturer and stealing the plans for a revolutionary engine. He sets out to compromise the police investigation and the actions of the document smugglers seeking to recover the plans.