During a stopover in Aden, a charming actress is kidnapped by an Arab prince.

In World War II France, American soldier Michael Blake captures, then loses Nazi-collaborator art thief Paul Rona, who leaves behind a gem studded gauntlet (a stolen religious relic). Years later, financial reverses lead Mike to return in search of the object. In Paris, he must dodge mysterious followers and a corpse that's hard to explain; so he and attractive tour guide Christine decamp on a cross-country pursuit that becomes love on the run...then takes yet another turn.

Nightclub entertainer Jean Clery has just become engaged to Lili, his attractive psychoanalyst. Meanwhile, the nightclub where he works is being used by a counterfeit ring, and Paris police suspect owner Paul Latour of being the ringleader. Finding it expedient to leave town, Paul leaves his "baby" daughter with Jean...who discovers too late that she's a wild, carefree, shapely sex-kitten with a talent for getting Jean into amusing scrapes.

Fates of multiple otherwise disconnected characters intertwine miraculously under the sky of Paris. And it all happens in one day.

Philémon De Montfilet came first in his year in the prestigious engineering school "Poly Art Technique" because of an epidemic which brought all the other examination candidates down.

Pierre Leroy has a garage that he manages with the help of a couple of friends, Raymond and Annette. But the bills pile up and Leroy is on the brink of bankruptcy.

Raoul Morel, a shy young man without a fortune, is an instructor at a driving school. During a lesson, he is disturbed by the ravishing and capricious Lolita Perez, the wealthy daughter of a South American who, despite her father's opposition, wants to marry a seductive adventurer, Marcel d'Arcy, who covets her fortune. At his instigation, she plans to marry Raoul - a sham marriage - in order to gain possession of his fortune. She divorces him and remarries Marcel. But Lolita falls in love with Raoul, who has been warned of her machinations and refuses the marriage...

The whimsical Jean Latour wins a competition for a month's holiday on the Côte d'Azur. When he arrives at the "Villa Sans Souci", he discovers that the owner and generous donor, M. Mallez, is a doctor, that the property's guests are sick with nerves, and that Mallez has brought him in to entertain his neurasthenic residents.

Harry Louis is a jazz clarinetist, obsessed by his art: he would like to match Sidney Bechet; the famous musician tries to give a piece of advice to his fan who, accidentally, kills him in a fit of anger. With the help of his mistress, Muriel, who has witnessed the scene, Harry does away with Bechet's dead body. But, during this gruesome trip, Muriel is accused of being responsible of a road accident. The insurance company sends a young man, Laurent, to investigate.

France, 1893. Joseph Bouvier attempts to shoot his love who refused to marry him and to commit suicide. Upon release from the filthy asylum where he was placed, with bullets still remaining in his head, he wanders the country roads and rapes and murders many teenagers over years. The judge Rousseau captures him, but to serve his ambition seeks to avoid that Bouvier is simply declared insane.