Once their military service is over, the instrumentalists of a regimental orchestra find themselves in civilian life and decide to run a hotel themselves on the Côte d'Azur.

A poor peasant family, a failed cabinet maker and an unemployed worker struggle in contrast to crooked rich businessmen. nearby.A Communist meeting gives young workers hope for a better future.

Being a tramp is not always a disadvantage. For example when there is a masquerade ball. Indeed wearing flea-ridden rags might just mean having donned a costume. This is what happens to two resourceful Brussels bums, La Cloche and Picolard, who manage to gain entry in a fancy-dress ball. Once there, La Cloche is mistaken by an oriental prince for a respected doctor. His mission will be to give care to a music-hall diva. Even more exciting, he is asked to vaccinate a whole troupe of showgirls. Trouble guaranteed.

Two twin sisters, nieces of the mayor of Buissons-les-Amours, are, one very wise, the other evaporated. The lover of the second falls in love with the first whom he will marry after being forgiven for his conduct.

Believing that her husband is cheating on her, Jacqueline decides to take revenge and goes to find Ernest, a chilled sigh. But in her bachelor apartment, she cannot decide to push her revenge to the end.

On one side, a crooked banker, his nephew and his orderly; on the other, the honest friend of the banker and his daughter. Substitution of male and female characters that end with two marriages.

Bernard, Sleeper Coach conductor and automobile inventor, is confused to be the racing car company president, and falls in love with a countess, who is actually a slogan prize winner chorine.