Debt-ridden painter Michel is overcome with joy at discovering that he has just won 1 million florins in the Dutch lottery, but almost immediately, he discovers that his softhearted girlfriend, Béatrice, has given away his jacket containing the winning ticket to an elderly petty thief. Soon Michel, Beatrice and Michel's artistic rival, Prosper, are hurtling through the streets of Paris on the trail of the missing jacket.

Chouchou leads a happy life between his comrades and his fiancée. But his father wants him to marry a rich American in love with him. Chouchou refuses and looks for work in order to be independent and to marry the one he loves.

The daughter of a nouveau riche family, invited to an upper class ball meant to launch her in society, rejects the offer.

A young man is involved in a swindle to produce synthetic gold, but fortunately when the fakery is uncovered he still has his girlfriend and a ticket to America.

Suzanne de Villiers, an illegitimate daughter of a noble family, has a lot of difficulty getting the people of the "high" to accept her feelings for her tutor, the Viscount of Ceran...

The eponymous garçonne or flapper is Monique Lerbier, an emancipated French woman who leaves home to escape a marriage of convenience to a man she does not love which her parents have forced on her. She then falls into all sorts of carnal temptations and artificial pleasures previously unknown to her. These include her being seduced into a lesbian love affair by a chanteuse.

A doctor is married to an overly jealous wife who wants a divorce. He advises one of his very shy patients to take a mistress when he feels attracted to the latter's fiancée. The "sick", meanwhile, feels weaknesses for the wife.

As playboys cannot pay their debts anymore,their creditors suggest one of them marry a millionaire's daughter.

In 1939, in a maternity ward, a young man visits his mistress who has just given birth to a little girl. He tells her that he is married and that for him the outcome of this adventure was not really planned. The mobilization separates them but the young man will end up divorcing and with the relentless help of a friend, will find his mistress and his child and will be able to marry her in spite of the chaos of the war.

A historian seeks to clarify the mysterious death of Sire de Malvaleix and will find himself involved in the murder of the current descendant.