Honoré, a valet, has an extremely logical mind and is unable to tell a lie. This comes in very fortunate for the family he works for.

A man inherits an old house in a very bad condition. With the help of a young mechanic, he begins to renovate this house.

Paris, 1956. Everything is going smoothly for Roger, married to Denise, and Paul, married to Monique, until the day they win a house in a radio contest. The difficulties of living together and the intrusion of their parents-in-law lead to a falling out.

Wounded during a rugby match he'd come to Paris to play, Tonin Bonnafous, a thoroughbred southerner, settled in Paris with a former stalag mate he'd happily met. Tonin liked the asylum. His friends are charming, and there's a neighbor, Martine, a young cinema extra, whom Tonin finds to his liking. Through his electrician friend, Tonin gets a job on the radio, and through his young neighbor, he even gets a job as an extra in the cinema.

Philémon De Montfilet came first in his year in the prestigious engineering school "Poly Art Technique" because of an epidemic which brought all the other examination candidates down.

Alex Berthier would love to be a famous songwriter. Meanwhile, he has to cope with unemployment, a witty 12 years old son and a rich and cute heiress who tries to help Alex as much as he tries to escape her: she brings nothing but trouble ! Fortunately, luck will strike again.

Marc, a motorcycle brigadier, is engaged to the charming Véronique. But his future brother-in-law, the clumsy Roger, leader of a Sunday motorcycle gang, has set his sights on joining the motorcycle police.

Bernard, a young, serious publisher of religious books, finds himself embroiled in amusing and eventful adventures with Sophie, a wacky twist dancer. Having lost his own situation, he joins Editions du Soleil thanks to his friend Marcel's manuscript "Comment réussir en amour". Freed of his shyness, he succeeds brilliantly in his career; and having put to good use the teachings of the manuscript, Bernard ends up marrying Sophie. But he soon finds himself confronted by the impetuous young woman's fantasies.

These two friendly delivery boys from a Parisian department store not only take their job to heart as much as possible, but also consider themselves responsible for the happiness of the customers they have to deliver to. This leads them successively to help, at the cost of incredible acrobatics, a young couple celebrating the first anniversary of their marriage, to mingle with the clientele of a rather disquieting doctor, to almost perish in an ambush that was of course not intended for them, and to avoid a domestic quarrel.

On August 24, 1944, the day Paris was liberated, Maurice saw his cell door open. Although he had spent the whole war "in the shadows", it was not for acts of resistance, but for stealing a bicycle. His contact with the free world was quite brutal. The queues he observed at the butcher's gave him an idea. With the help of his childhood friend Roland, who has lost everything gambling-wise, he steals "Berlingot", the horse from a delivery car, and offers it for sale on the black market. But the "nag" is not of the same opinion.