In the second episode of the trilogy Fantômas kidnaps distinguished scientist professor Marchand with the aim to develop a super weapon that will enable him to menace the world. Fantômas is also planning to abduct a second scientist, professor Lefebvre.
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...
Three little criminals get a tip for a great coup with lots of money in it. Unfortunately they lack the starting funds to buy the required welding torch. So they persuade their successful colleague Alphonse to join their team. But the well thought-out coup fails, and Alphonse is the only one of them who ends up in jail for several years. When he's released, he's out for revenge.
Agnes, a lonely teenage girl, and her father befriend an escaped convict, named Joseph, who arrives at their farm in Brittany, France. When Joseph develops an attraction to Agnes, her father threatens to break up the union.
A few stories about marriage and its problems. Antoine is about to marry Gisèle. His friend Julien, an established bachelor, desperately tries to convince him not to do it, recounting his own painful experiences.
After Regina Lampert falls for the dashing Peter Joshua on a skiing holiday in the French Alps, she discovers upon her return to Paris that her husband has been murdered. Soon, she and Peter are giving chase to three of her late husband's World War II cronies, Tex, Scobie and Gideon, who are after a quarter of a million dollars the quartet stole while behind enemy lines.
French film favorite Edwige Feuillere plays a high-class gangster's moll named Maine. When Maine's first husband and daughter pay a visit, it's an awkward time for our heroine and her current amour, gang boss Godot (Jean Servais). In addition to fielding a lot of embarrassing questions, Godot also has to deal with a pesky turf war with a rival mobster. Not that the ex-husband is a paragon of virtue: he's busy trying to get even with a crooked business associate.