Deuxième court métrage d'Yves Robert, sous la direction de Claude Sautet, dans lequel Fernand Raynaud, comique star de l'époque, se met en scène dans une aventure inspirée de ses sketches.

A young woman has a perilous affair with a General from the opposing side during the Revolutionary war.

The blueprints of an aeroplane built from an ultra-secret metal are stolen from national security. French secret service agent Walder believes that the documents are now in Switzerland, in the hands of a man named Lindbaum. The latter agrees to hand over the blueprints in return for a large sum of money. Another agent, Francis Coplan, is sent to Switzerland to handle the deal, but Lindbaum only has half of the documents because he was double-crossed by Kalpannen, an international crook. With the help of Heidi, a Swiss correspondent, Coplan sets out to identify the members of Kalpannen’s gang, only to find that they have all been murdered…

Shy, timorous bank clerk, Fernand Jérôme, prevents -unwillingly of course - a gang led by "Le Grand J" from robbing the "Crédit Populaire", where he works. Having become a hero out of the blue, this new status allows him to woo Renée, the daughter of chief inspector Merlerin. What Merlerin does not know is that the man he has been trying to arrest for years, "Le Grand J" is in fact Joseph Jérôme, Fernand's father, who has disappeared for years...

Paul Lamiani, a wizened mobster, is asked to return to duty following the disappearance of secret documents of extreme importance. It is assumed that they are in the hands of a friend of Paul. But the case becomes even more delicate when Lamiani's son is kidnapped.

Stéphane Blanchon lives a quiet life in Switzerland with his wife, Christine, until a young American boarder named Belle, who was living with them, is found murdered. Despite Stéphane's innocence, the evidence points to him, and he learns that Belle harbored romantic feelings for him. Suspicions mount against him; even Christine thinks he is the culprit. Stéphane's sanity begins to crumble, and he lashes out in unprecedented ways.

While Henri Laurent speeds along on the racing circuits, his pretty wife Françoise goes from luxury boutique to luxury boutique with her best friend Denise. One day, Denise lets her know that Henri has a lover. Outraged, Françoise moves out of marital home and rents a maids' room in Rue de l'Estrapade. Henri tries to get his wife back but Françoise does not listen. She even looks for a job in a prêt-à-porter shop and lets herself be courted by Robert, her neighbor across the landing...

A lawyer hires a call girl after learning his wife has invited her lover to move in; the husband and wife separate and the two new couples live side-by-side without issue - until an ex-boyfriend shows up and things start to go wrong.