A safecracker and thief escapes from prison, founds a factory and becomes rich. After 20 years, his accomplice, released from prison, demands his share and gets it. But when he also demands the hand of the factory owner's daughter, the latter shoots him. However, the girl's groom is blamed for the murder. After two detectives and a female colleague have investigated, the guilt of the factory owner comes to light, who then dies.