In wartime, a young officer is killed during a raid to kill a German general at the house that used to belong to his grandmother. Before he dies he talks about a treasure that was hidden there. Several years later, the members of that group are still together as a street band living in a cellar. The last of the gang, who was chosen for his skills as a ruthless killer, escapes from prison in a rampage of killing and, obsessed with the treasure, takes the gang to France to recover it.

El cabecilla de una peligrosa banda escapa de prisión para buscar un misterioso tesoro que se encuentra enterrado en la mansión de una viuda, que se prepara para casarse con un hombre. De repente, ella comienza a recibir misteriosas fotos de su difunto cónyuge, quien fue dado por desaparecido, por lo que podría estar vivo. Asustada, entrega las fotos a la policía, que iniciará una investigación a fin de esclarecer el misterio.