At the end of the 19th century, during a ball in Joinville, on the outskirts of Paris, Georges, a former delinquent working as a carpenter, meets Marie, a young woman connected to a criminal gang.
Sandra Carpenter is a London-based dancer who is distraught to learn that her friend has disappeared. Soon after the disappearance, she's approached by Harley Temple, a police investigator who believes her friend has been murdered by a serial killer who uses personal ads to find his victims. Temple hatches a plan to catch the killer using Sandra as bait, and Sandra agrees to help.
Inhabitants of a flophouse struggle to survive under the harsh treatment imposed by the landlord, Kostyleva. One resident, young thief Wasska Pepel, ends his affair with the landlord's wife, Vassilissa, and takes up with her sister, Natacha. Pepel also befriends the baron, a former nobleman fallen on hard times, but Pepel's attempts at happiness are complicated when he's accused of murder by a spiteful Vassilissa.
