An American is on the run in the streets and back alleys of France.

A famous comedian decrees that his fortune will go to whoever collects as many pop star autographs as quickly as possible. When he dies, two cousins ​​embark on the race for signatures.

Fred, the nephew of a senator,has murdered a Black man on a train. The two only witnesses are Lizzie McKay, a prostitute from New York, and Sidney, a colored man. Fred decides to seduce Lizzie in order to make her give false evidence according to which Sidney has attempted to rape her. The uncle also puts pressure on the young woman. After much hesitation, Lizzie finally accepts but Sidney, who has nearly got lynched, takes refuge at her home...

An industrialist who prefers painting to business is cheated on by his wife with a painter who prefers business to painting.

To conceal his nighttime infidelity from his wife Gisele, Pierre calls in a particularly shady private detective to concoct an alibi. He is introduced to a certain Robert Crémieux, who will pass himself off to Gisèle as a childhood friend with whom he spent the night until the early hours of the morning. The so-called childhood friend turns out to be a delinquent accused of burglary and rape on the very night he was supposed to be with Pierre. Pierre is immediately suspected of being his accomplice and, trapped by his own turpitude, arrested. Entangled in his lies and denials, he has to admit his infidelity to get out of the impasse.