"Man or Unknown Persons" is an exciting book written by a talented writer, which combines elements of a detective story, a psychological thriller, and a philosophical drama. The main character finds himself at the center of the mysterious disappearance of his close friend, but the more he investigates the case, the more new secrets are revealed and provoke deep philosophical reflections on existence, identity and loneliness. Each page of this book captivates with its intrigue and unpredictability, and the finale will leave the reader with a powerful emotional twist. "Man or Unknown Persons" is a work that will make you think about the depth of the human soul and the mystery of our own feelings.