adapted from the best-selling novel of the same name by the japanese mystery queen miyuki miyuki, the prosecutor who was good at investigating murder cases in the 1990s, faced with the first serial murder case at that time, the ruler that measured justice in his heart against the murderer. faced with the continuous provocation of the murderer and the subsequent expansion of evil during the case handling process, xiaoqi was determined to stain his hands and even bet on his life to drag out the murderer's evidence of the murderer's crime. eee。