"Maniac" is a tense thriller by the famous writer Stephen King. This book tells the story of a psychopathic serial killer who is constantly on the loose and continues to kill innocent people. The main character, a detective who continuously hunts down a maniac, himself faces his own demons and hardships in his personal life. In the book, King fills the reader with incomprehensible situations, unexpected turns and tension until the very end. He successfully selected the atmosphere that allows you to feel the fear and anxiety that haunt the heroes of each page. "Maniac" is not just a book about crimes, it is a deep thought-provoking story about the psychology of a criminal and his persecutors. Summing up, we can say that "Maniac" is an exciting thriller that will keep you in suspense until the last page, forcing you to marvel again and again at the author's skill in creating terrifyingly realistic images and plots.