In this short scene, Sou's sister-in-law, Safie, reveals that her husband, Minghao Luo, was one of three people who died in a car accident. When she first saw him, she thought he was a spirit, but when she saw him in bright light, she realized that he was her husband. The woman who received the injured in the accident had a cornea operation before, and the man who was holding the knife was her last thing she saw before death, so she called the police, who caught the murderer. Everyone thought that her father was killed while on duty, but this is not the reason for killing someone. The two men go to fetch the file on the case, which seems to have been forgotten in old duan's mind. When they arrive, they find that the case has been closed without any explanation. Three years later, the principal duan also died of spontaneous combustion, but the case was still unsolved. When the two men try to figure out what the symbol stands for in the file, they have no luck. They decide to start the investigation in a week.