A girl with an unusual name for Russian ears, Nafisa, grew up in a poor Tatar village. Having accidentally met Pavel, a brilliant young man, a conqueror of women's hearts, she falls in love with him and tries to marry him. She tricks her into leaving with him, but that doesn’t help. He doesn't love her and drives her away. A poor girl is left alone in a big city. She finds her place in life with difficulty. But even since then, not everything has gone smoothly for Pavel, troubles continue in a continuous stream, and his dishonest attitude towards women ends in tears. They shoot him, his death gives another person a chance: Pavel’s heart is transplanted into him. Before his death, Pavel regrets the mistakes he has made, but evil continues to sprout.