After their car breaks down in the French countryside, a young couple must fend off a Nazi mutant and his gypsy mother, a mummy, and a possessed horse.

Employed in a beauty salon, Amédée must undergo a pentothal injection. The dose is too strong; suddenly Amédée reveals the truth to everyone; to clients of the institute; to his cheating wife; to his boss that he robs; to the tax collector; etc. When the effects of the truth serum wear off, everyone returns contentedly to their little swamp.

Duped by a pretty woman who uses him to smuggle a suitcase containing the proceeds of a theft through the station, an honest fellow understands everything and replaces the suitcase with a similar one. The police do not understand anything, but the pretty girl promises to become honest like the one who almost was her pigeon.

For love, the singer Georges Hyverlin gives up his profession to work with his father-in-law in his car factory. When the passion for song takes him back, he manages to resume his career thanks to the support of his wife Martine.

During Christmas night, two police officers make their nocturnal rounds, in their round they meet tramps, brawlers in a café, a naked man, a concierge, a sexton, revelers in a nightclub, and end by signing in their report to the police station.

Catherine, 18, loved Jean, a young accountant, who loved her in return. And yet, one morning, two policemen find their dead bodies on a stretch of waste ground. The case is obvious: the two young people have killed themselves. But why? Chief Inspector Ernest Plonche, feeling upset, decides to investigate personally.

The young Mathilde de Marsan, believes she is in love with a singer, Philippe Mazières, and steals his photo. This one, who had written a song start, searches for this photo as far as the castle of Geoffroy and Estelle de Marsan, where Mathilde's uncle and aunt take him for the husband of one of their guests, Claude Cartier. and will finally marry her while Georges, Claude's ex-fiancé will fall in love with his hosts' niece, Mathilde.

Léon, André, Christiane and Monique, who all study drama, decide to go camping together. Unfortunately - although unsurprisingly - their old jalopy breaks down on the road. Chance has it that in the village where they are stranded a historical movie is being shot by famed director Médéric, starring sexpot Barbara Glamour and Latin heartthrob Edouardo Tocato. Two of the young people start flirting with the two film stars until their friends make them see reason : they love each other. The four of them end up being hired as extras and all is well that ends well.

Eugène, who works for Radio-Europe, is a bit dim-witted. He lives in a block of flats whose caretaker is Madame Motte, and the lady is in love with the young man. Just for laughs, Eugène's friends circulate on the air the rumor that Eugène has inherited millions of francs. It does not take long before a swarm of 'friends' start mixing with him. After a while, considering that the joke has lasted long enough, the jokers reveal the truth. Eugène immediately loses all his 'friends' but not he girl he loves. Even better, Eugène actually inherits a big sum of money. He who laughs last laughs best!

Jacques Montet, a successful crime story writer, has already written a hundred books and would like to call it quits now to devote himself to loftier writing. But his wife, a cold-hearted, money-minded, bossy woman won't allow. All the more as she is the one who supplies Jacques with the plots of his detective stories. When Jacques, yearning for true love, meets young, pretty Muriel, he can't stand the situation any longer. Fortunately - for him - the plot of the 101st detective story imagined by his wife is about a ... perfect crime. He simply has to follow her instructions to ... get rid of her. Everything goes according to plan until Jacques discovers a scary detail: the presence of a mysterious witness on the scene of the crime.