Pépé le Moko, one of France's most wanted criminals, hides out in the Casbah section of Algiers. He knows police will be waiting for him if he tries to leave the city. When Pépé meets Gaby, a gorgeous woman from Paris who is lost in the Casbah, he falls for her.
Proud, eccentric, and antisocial, Monsieur Hire has always kept to himself. But after a woman turns up dead in the Paris suburb where he lives, he feels drawn to a pretty young newcomer to town and discovers that his neighbors are only too ready to suspect the worst of him.
Denise Moret joins her husband, Pierre, in Mongolia where he works as a civil engineer. One night she loose a lot of money on the roulette and therefore is forced to borrow money from Prince Lee-Lang. The Prince immediately begins to flirt and make advances towards Denise. Advances she rejects.
