Brother Dong learned that his brother Chen Ziyun, who died in front of him that year, was actually the brother of the murderer Chen Ziang. He was on the verge of collapse. The past events were still vivid in his mind. The knife wound was infected and he was sent to the hospital for treatment.
Zhao Entropy compared it carefully and found that Dong Ge's alibi that night was false, but Dong Ge was in first aid at this time. Zhao Entropy pointed the next target of suspicion at Qian Xiaoming, an autistic young man who was ignored by everyone... PanThe director's long-time friend, psychology professor Teacher Zhou, appears to assist in the investigation, which leads the case to a new direction...