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...

Photographer Henri Barbier is lured by his old friend Barbara to fake the theft of her jewels. It turns out that he is suspected of murder and extortion, while Barbara and her lover are the culprits, which is eventually revealed.