The police investigated the death of prostitute Zhuang Yuling and followed the clues to find Dingqin to assist in the investigation.Yuling confirmed that she died of suffocation due to asthma. On the surface, the cause of death was not suspicious.Rijin and Kelan determined that Dingqin had concealed something from them before. Rijin even foresaw Dingqin becoming furious and wanted to know everything about Dingqin. Rijin asked psychiatrists Yang Jiatu and Candy to inquire and learned more.The secret about Dingqin’s past!Sure enough, Dingqin suddenly went crazy and attacked an innocent uncle, but fortunately Rijin stopped him in time.After Ri Jin and Kelan repeatedly learned about it, it turned out that the two had a grudge about their mother... After repeated investigations by Ri Jin, something was discovered in Yu Ling's unit. Is Yu Ling's death just an accident?