Vallois, a vice inspector for the Paris police, takes special interest in the plight of drug-addicted Lucky (Najda Tiller), whom he considers to be more victim than criminal. Taking it upon himself to wean Lucky away from narcotics, Vallois also wins her love -- and, incidentally, smashes the dope ring responsible for her addiction.

An art dealer in dire straits, after being ripped off by two crooks, one of whom owns a genuine painting by Gauguin while the other is an expert copyist, finds them again and, instead of killing them as he originally intended, joins in their game – with ultimately disastrous results.

Middle-aged Georges of the "old school" who offers shelter and comfort to Marcelle. Despite his own reservations, Georges falls in love with the much-younger girl, remaining faithful to her even after he realizes that she cares only for his money.

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.

During the London-Melbourne race, two aviators, one male (Guy,) the other female (Betty), are forced to land on a lost island in Polynesia. They learn to survive in difficult conditions and fall in love. Back in civilization, their union does not prove obvious. Pierre is already married to Ginette, a movie actress, and Betty is engaged to her cousin Edouard. Moreover, Lord Stanton, her rich father, will not hear of a marriage with Guy. Will love ultimately triumph in spite of everything?

Mortal is ready to do anything to obtain a divorce from his wife Nadia. To compromise her, he needs to find her a lover. He thinks he has found the ideal candidate in the person of a manly private detective by the name of Robert Arnaud. But the experience gets out of Mortal's control as, on the one hand, Robert and Nadia fall in love for good, and, on the other hand, Robert, assisted by resourceful young Toto, manages to expose Mortal as the jewel thief he is.

For some time, the police have been on the trail of a mysterious burglar who has evaded capture whilst executing one daring robbery after another. No one has any clue as to the identity of this elusive criminal and he has come to be known as Monsieur Personne.

After he loses a servant job when his employer's mansion burns down, a yokel makes money entertaining tourists in Breton garb, lands up appearing in a Paris show ,and meets another property owning lady, this one of dubious reputation.

Lina Bourget, a realist singer, is forced to leave Dakar because of a murder she believes she has committed. Taking refuge in Paris, she unexpectedly becomes a star in the capital.