In 1721, at the end of his career as a bandit, Cartouche, touched by the grace of an honest young girl, and falling into the hands of justice under the charge of the father of his beloved, asks as a last resort, that the young girl may, before her execution, come and forgive her.

A couple get married, not out of love, but to get away from their families. When they run out of gas and have to stop at a mountain hotel, they discover their love is now real.

Dora Nelson, a famous actress, leaves both her husband Philippe de Moreuil and the role she was playing in a movie directed by Nivert, to follow her lover Santini in Italy. But she soon realizes that Santini deceives her with a girl named Elsa. In vexation she decides to return to her husband and to her career. Unfortunately for her, Suzanne Verdier, a little working girl, has in the meantime replaced her not only in the film she had left unfinished but in her husband's heart as well. Dora eventually understands she must step aside.

Alexis, a former war pilot, attempted the Paris-Tokyo raid and failed. He became a taxi driver. The film actress, Margot Fontane, forgets her bag in the taxi and Alexis thus meets her. He goes to see the great actress shoot, he is hired for a small role as an aviator, and to simulate a take-off, he flies to Tokyo. It is the signal of happiness for the two lovers.

Roger Laroque is now a rich man. He returns to France under the name of William Farnell. There, he discovers that on the one hand his wife has died of a broken heart and on the other that his daughter Suzanne is in love with Raymond de Noirville, the son of his former mistress. With the help of a few friends, Roger coldly prepares his revenge.

The evocation of Paris in the 1920s mingles with the rapid rise of the irresistible Caprice, a talented singer, and her tumultuous love affair with Jeff the composer. A photographer nicknamed Bagnolet, a gentle anarchist, gently monitors the activities of Caprice, who has become Lady Paname and, in the absence of morality, makes love triumph.

In Paris, three models are murdered, being one of them the mistress of the fashion designer Dominique Airelle. It is the young inspector who is in charge of the affair.