This novel explores the moral and psychological development of a young student sent to a military boarding school in Austro-Hungarian Empire. The protagonist witnesses and participates in the bullying and humiliation of a fellow student, leading him to question the nature of power, morality, and the thin line between civilization and barbarity. The book is a profound exploration of adolescence, authority, and the loss of innocence.

The book is an explicit and controversial work that explores themes of sexual perversion and cruelty. The narrative follows four wealthy, libertine men who lock themselves in a remote castle with a harem of 46 victims, including men, women, and children. Over the course of 120 days, they engage in a series of escalating debaucheries, meticulously documented by the men. The story is a study of the darkest corners of human nature, presenting an unflinching and graphic portrayal of sexual violence.

The novel explores the darker side of human desires through the eyes of its protagonist, who delves into his disturbing fantasies of violence and sexual aggression. As he recounts his experiences and fantasies in letters to a friend, the narrative blurs the lines between reality and imagination, challenging the reader's perceptions of morality and the limits of human behavior. Set against a backdrop of underground scenes, the book is a provocative exploration of obsession, the nature of evil, and the allure of transgression.