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.

A poor wretch, who has just been hired as a music-hall artist, in spite of himself becomes the tenant of a particular Parisian building.

A rich banker is actually a crook. His mistress, an alien, wants to become French and the only way is to marry a Frenchman.

At the urging of her childhood friend Brémontier, Lucie de Kéradec, a wealthy widowed countess who wishes to remarry, invites all of her seven suitors to her mansion. Her untold intention is to test them by claiming to be ruined. The experience is a success in that each of the potential husbands reveals his inner nature but a failure when it comes to finding a new life partner. None of the guests passes the test except - the eighth man, namely Brémontier who loved Lucie in secret but, being penniless, had not dared declare his flame to her.

After serving in the trenches of World War I, Jean Diaz recoils with such horror that he renounces love and personal pleasure to immerse himself in scientific research, seeking a machine to prevent war. He thinks he has succeeded, but the government subverts his discovery, and Europe slides with seeming inevitability toward World War II. In desperation, Diaz summons the ghosts of the war dead from the graves and fields of France to give silent, accusing protest.

Bobby Guibert and Pat Duvallon are the best of friends. They are also big party animals. Honorine, Bobby's aunt, is outraged by her nephew's bad behavior, all the more as it is with her money that the young man paints the city red, always accompanied by Pat. She then decides to send them both to the West Indies, where she owns a sugar-cane plantation, in the hope that far from temptation they will reform. Once there, the two revelers come up with nothing better than - swap identities, which will be the cause of a series of cheerful misunderstandings. Everything will end not in one, but several marriages.

Georges Legrand is a young unscrupulous reveler. He seduces Fred, a woman doctor before shamelessly dumping her for Aline Ribourg, a tennis player. Soon fed up with his new conquest, he returns to Fred. But Aline is pregnant from him. Showing an admirable sense of self-sacrifice, Fred manages to persuade Georges to marry Aline.

"Tu seras duchesse!" ("You'll Be a Duchess!") With these words, self-made industrialist Poisson orders his daughter Lucie to marry a wealthy Duke. The duke's father objects to the union, whereupon Poisson arranges another marriage for his daughter, this time to an impoverished and sickly young marquis. Poisson's strategy runs something like this: the Marquis is expected to die soon, whereupon the widowed Lucie will become a marquess, and thus a worthy bride for the Duke. But the Marquis foils these plans by staging a miraculous recovery. The explanation? The Marquis and Lucie have been in love all along, and this was the only way that they could wed with Poisson's blessing. Darned clever, these Frenchmen!.

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A brave man accidentally gives some good tips to a client who immediately hires him as a secretary. But he is kidnapped by a rival bank and there is a queue to get his predictions. He finally understands that he makes everyone's fortune except his own. He opens a private pharmacy where he earns everything he wants and even love.

In Paris, Jean Bourselet, a great lover of pretty women, meets the charming Madeleine, whom men are not afraid of, and whose husband is a hotelier in Vittel. Provided with a note from his doctor, Bourselet goes off to Vittel. His wife Henriette, on her guard, joins her there and discovers that her husband is pretending to be a widower to better woo his beautiful. Henriette declares herself a widow, and flirts with a man. The lesson will bear, and after a few adventures, Bourselet is delighted to find his wife.

An adventurer poses as a prince and tries to take rich and pretty Dolly away from the man she loves by stirring up trouble.Heartbroken, Dolly is ready to drown herself.