Two Worlds (Humans and Evil)

The plot is taken from my childhood impressions. As a child I read Russian folk tales and sincerely wondered how people lived next to all sorts of evil spirits. Growing up, I thought that it was all fiction, fantasy of our poorly educated ancestors. People in ancient times could not explain the phenomena of nature, or any physical laws. When I grew up, I realized and saw that the devil exists and lives in the human world...