A possible concise summary is:
This is a transcript of a video by Elena Raitman, a YouTube blogger who tells scary stories. In this video, she tells the story of how she was kidnapped by her boyfriend Nikita, who turned out to be a psychopath and a murderer. He thought she was his mother and kept her in a house by the lake. She managed to escape and call the police, but he is still on the loose and stalking her. She warns her viewers to be careful and trust their partners.
Here are some key facts extracted from the text:
1. The text is a transcript of a video by Elena Raitman, a YouTube channel host who tells scary stories.
2. The story is about a girl who was kidnapped by a psychopath named Nikita (or Yegor) who thought she was his mother.
3. Nikita had killed his real mother and another man before, and he had escaped from a psychiatric hospital.
4. The girl managed to escape from Nikita's house by the lake, but the police did not catch him and he still stalks her.
5. The girl warns the viewers to be careful and look at who they are dating.