“The One Who Knows” is an exciting novel by Alexandra Marina, one of the most famous and respected Russian authors in the genre of crime drama and psychological thriller. This book is a real immersion in the dark secrets of the human psyche, intricate traces of crime and a subtle game of reason that keeps the reader in suspense from the first pages to the last line. The title "He Who Knows" evokes associations with mysteries, hidden knowledge, and unsolved secrets, which fully corresponds to the content of the work. In the center of the plot is a complex and multifaceted story that reveals to the reader not only criminal secrets, but also the inner world of the characters, their motivations and experiences. Alexander Marinina masterfully creates an atmosphere of tension, intertwining real investigative situations with psychological aspects, which makes the book especially attractive for lovers of detectives, psychological thrillers and action-packed stories. In this novel, the author raises important topics - issues of justice, morality, human responsibility and borders, behind which dangerous secrets are hidden. The book "He Who Knows" is intended for a wide audience - from mature lovers of criminal literature to those who appreciate deep psychological analysis and the skill of the author. It will especially appeal to those who are looking not only for an exciting plot, but also for reflections on the nature of the human soul, on how the past and secrets can affect the present. If you appreciate books in which every word is imbued with meaning, and the ending leaves behind a sense of completeness and thoughtfulness, this story is for you. Alexandra Marinina is an author whose works are distinguished by a special style combining realism, subtle psychology and acute social criticism. Her books, such as Bury Me at the Plinth and The Code of Honor, have long earned readers and critics recognition for their depth and truthfulness. In He Who Knows, she continues the tradition of creating vivid, multi-faceted characters and intricate storylines that make you think about the most important issues in life. The themes raised in the novel are not only investigating crimes, but also reflecting on the nature of evil, how our secrets can destroy fate and how important it is to be able to trust and forgive. The book clearly shows the style of Marina - an accurate description of the details, the psychological study of the characters and the ability to keep the reader in constant tension. She masterfully creates an atmosphere in which every detail matters, and the finale becomes the logical conclusion of a complex puzzle. If you are looking for a book that will not only captivate you with an exciting plot, but also make you think about human nature, about the boundaries of morality and responsibility, “He Who Knows” by Alexandra Marina is exactly what you need. This book will be an excellent choice for those who appreciate high-quality Russian literature, psychological thrillers and detectives with deep meaning. It is worth reading to those who like to immerse themselves in complex stories filled with intrigue, and enjoy the skill of the author, able to combine realism with subtle psychological drama.