The evidence was conclusive, and Cao Jin ordered the arrest of Li Guokun.However, Li Guokun received a photo of Feng Xiaojuan's shoes sent from an unknown number and had already escaped.Lu Fan also learned that Li Guokun had escaped and applied for Ning Zhen to go to support him, and inferred that Li Guokun might have fled to Linshi.Finally, Li Guokun was found in the jungle, but he was killed and there is still the “ abyss ” symbol.
The fate of Ning Zhen, Lu Fan and Cao Jin intersect again.It turned out that Ning Zhen was the boy who called the police back then. Cao Jin proposed to restart the old case and seconded Ning Zhen to the criminal police team.Li Guokun's last call record pointed to the psychologist Luo Yin, and found out the case of Cangbei naked corpse that had not been settled fifteen years ago.