Crime Lesson: Perfect Evidence

My name is Chen Mo, a criminal profiler who was abandoned by the system. I suffer from hyperamnesia - I can remember all the details of a crime, but have difficulty understanding the emotions of ordinary people. I spent seven days solving the "Red Coat Serial Case" that the police had not solved for ten years, at the cost of being infected with the murderer's violent desires. That rainy night, the deceased whispered in my ear: "Welcome to join the 'Forgotten River', the next target... Is yourself." From then on, I was forced to join a crime puzzle game that spans a hundred years. The painter of the Republic of China, the postal bomber of the last century, the modern live broadcast murderer... All the clues in the unsolved case ultimately point to one truth: Someone was collecting "perfect crimes" and I was his final piece of the puzzle.