The quiet little village was broken by a scream. The Beichuan Criminal Police Team received a report: the body of old man Li, who lived alone, was found at his home. The scene was messy but there were no signs of a fight. The old man had his throat cut with a knife. Just as the clues were deadlocked, the police were called again. The person killed this time was Mrs. Zhao from a neighboring village. What's even more bizarre is that the suspect targeted by the police died suddenly. Cases come one after another...
