To say that Natasha was unlucky with her stepfather is to say nothing. The rapist, who has his eyes on his stepdaughter, as soon as she has turned into a beautiful girl, makes her life unbearable. There is no deliverance in sight - he threatens her with violence if she complains about him. And yet it comes - Nikolai Fomichev is found in his room with a knife in his heart. There are many suspects, but there is no conclusive evidence against anyone. There is a witness who seems to know the truth. But she won't say anything...