Synopsis by Hal Erickson
Director Felix Gadera also scripted this cinemadaptation of Eugene Sue's steamy novel Les Mysteres de Paris. Henri Rolan stars as Count Rodolphe, who while slumming in the "Thieves Quarter" of Paris makes the acquaintance of pretty Marie (Madeleine Ozeray). The Count falls in love with the girl, never suspecting that she is actually his illegitimate daughter. He later rescues her from a kidnapper, subjecting himself to all sorts of slimy horrors in the Parisian sewers. Once he learns Marie's true identity, the Count "does right" by the girl, while Marie's mother (Lucienne La Marchand), who turns out to be the villain of the piece, skulks away into the darkness.