Blood-stained blades, scorching bullets, a nightmare of death that can never be escaped. There are a series of crimes and numerous murderous intentions. Who is the real murderer hidden behind it? The guilty hands have not yet been washed, and the prison door has slowly opened... This story is told in four parts. The protagonist "I" enters the public security system after graduating from the police academy. My ideal was to be a criminal police officer, but my boss assigned me to work in the archives department. In order to work, I began to look through the dusty files on the file shelf. As the reading progressed, I discovered the investigation files of many cases. Reading each story is both alarming and thought-provoking. The story is thrilling, twists and turns, full of suspense, and its excitement is no less than a wonderful detective mystery novel...
