Boris and Nina are in love. He is the son of a wealthy merchant, she - just an ordinary seamstress. Boris's Father opposes their love. The merchant works a plan of action that he carries out with the help of Nina's father. He is degenerate drunkard. For money, he stages an orgy with the participation of his own daughter. Boris takes what he sees at its face value and abandoned Nina in disgust. The bride chosen by the merchant for his son is a banker's daughter. He also takes part in the realization of his future father-in-law dishonest schemes. However, the girl is taken gravely ill. Repentant, she makes a deathbed confession revealing the truth to Boris. He realizes that Nina is innocent and returns to her for good.