Mado loves Henry but is coveted by Bob Torquella, a dangerous gangster. The latter, mad with jealousy, is prepared to do everything to get rid of Henri. He and his accomplice involve him in a dangerous robbery. Henri is hurt and arrested by the police. But the young man, a weak character, denounces his accomplices. Two years later, the two gangsters run away from prison. Bob finds that Henri and Mado are husband and wife and have a daughter. In a panic, Henri runs for cover.

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...