The son of a rich soap manufacturer gets himself in predicaments trying to prove to his father that he's responsible enough for marriage.

Nell Marignan, going by the nickname of Mistigri, a naive small town girl, falls for a tenor on tour. Unfortunately, the man is nothing but a vain, witless and talentless hop. But, blinded by love, Mistigri sacrifices all to follow the buffoon she mistakes for her Romeo. Now sharing his life, she shines nevertheless under the illusion of happiness.

Hélène is a telephone operator in love with her boss, who has never looked at her. She follows him to the Côte d'Azur and passes herself off as a great lady. Brodier falls madly in love with her.

Valerian writes his uncle, colonial millionaire, for money. He meets a quartermaster, Napoleon, who pretends to be a doctor of law. They become friends.

A young husband, annoyed by his stepmother, divorces and marries a young girl whose father is a widower. When the two new spouses return from their honeymoon, the stepfather has married his son-in-law's first wife.

Under two different names, a journalist writes for two newspapers with opposing political doctrines and finds himself forced to fight a duel with himself.

A student monitor in a high school in the French provinces has no control over the pupils. He is in love with the caretaker's daughter but his superior, the Dean of Discipline, is also his love rival. Now, the two men are sent on military temporary duty and irony has it that in the Army the Dean is only a private whereas the mere supervisor's rank is ... corporal!

A shy young composer gets a job as musical director, under a false name, at a music publisher. The editor has two charming daughters, one falls in love with the composer, and the other with the musical director, two people who are only one man... Complications, misunderstandings and a happy ending.