"Devil" is a philosophical and psychological novel by the famous Ukrainian writer Oleksandr Kopylenka. In this book, the author reveals the theme of a person's internal struggle with his demons and the dark sides of his essence. The protagonist finds himself in harsh living conditions that require him to constantly choose between good and evil, between integrity and temptation. The novel "Devil" fascinates the reader with its depth and inner tension. It helps everyone to reflect on their own actions, shows how important it is to find the strength to overcome one's own weaknesses and discover new opportunities for oneself. This book will leave behind many warm and deep thoughts about life and human nature.