"Uncleanness" is a fantastic novel written by the Ukrainian writer Oleksandr Yurchenko. The book tells about a person's unique attempt to come into contact with the mysterious forces of darkness and nature. The main character, Dr. Karpenko, goes to research a long-abandoned monastery, but even he has no idea what he is getting into. The reader will immerse himself in the world of mysticism, magic and spiritual struggle, where reality is intertwined with fantasy, and disappointment with knowledge. "Uncleanness" is not just a book about mysterious phenomena, but also about important life values and the ability to make one's own decisions.