Who killed this man to rob him of his money in this notorious neighborhood of Paris? The usual local scoundrel such as the one that has almost been lynched by the mob and arrested by the police? Not at all. In fact the poor man is innocent, even though appearances are deceiving. The real culprit is a respectably-looking man who, to divert suspicion, has put some blood of his victim on his fingers and some of the stolen money in his pockets while he was asleep. But Pierrot, the bad boy's friend, won't buy it. He returns to the scene of crime where he discovers a calling card and a handkerchief stained with blood and immediately goes to the address written on the card. There, he discovers the man who caused all this havoc, a rich and and respected person, but who lives a double life. Outraged, Pierrot accuses the vile man...
