A simple man gets involved in an implausible story of gangsters in the wake of the discovery of a criminal's dead body in his own bed.

Barton and Cutterfeet, two London mobsters, team up with stripper Marina to pull off the big jobs. But the arrival of a rival who signs his crimes "The Angel" takes away all their profits. The three friends hope to get their revenge when they steal a diamond.

In Montmartre, prostitutes and neighborhood pimps meet in Victor's bar. One of them, Charly, one day falls in love with the beautiful Laurence, a girl who honestly earns her life as a singer. But Fernand, the local boss, sees a bad eye his acolyte out of the ranks to lead a quiet life in the company of his sweetheart. He provokes the jealousy of Jessy, mistress of Charly. The latter, stung, does not intend to leave without fighting his lover take the tangent. She ruminates her revenge so much that she ends up shooting Charly ...