Through the investigation of Department 9, it was found that Sun Yunxiao, the defendant in Shen Yuer's case, transformed into Mr. Sun after he was released. During that time, Chen Tingyi's mother was seriously ill and was hospitalized, and had used a high-priced drug that was difficult for ordinary people to buy.Du Ziyu went to Chen Tingyi with the evidence.Chen Tingyi was ashamed and confessed to his apprentice that he was instructed by Zhu Jie to help Sun Yunxiao take the blame. Zhu Jie's business has been booming since then.This case has become a knot in his mind for many years and a stain on his career.Lei Xu noticed clues about “车” in the tape recording left by Ding Yonggang, so he went to the Ding family's old house and struggled to find the SD card evidence of Zhujie's collusion between officials and businessmen that had been hidden by Ding Yonggang among many car models.Zhu Jie sent someone to steal the SD card and wanted to put Lei Xu and Du Ziyu to death. Fortunately, colleagues from the Jiu Department and the police arrived in time.

Chen Tingyi redeemed himself and helped capture Sun Yunxiao.Zhu Jie’s white-glove Zhang Hongtu opened his mouth and threatened Zhu Jie with the truth about Shen Yuer’s case.Lei Xu, who woke up in severe pain, found that Su Da had fallen to his death.Lei Xu immediately called the police, but because the scene of the fall had been cleaned up in advance without leaving any traces, and there was no third person present to prove Lei Xu's innocence, Lei Xu could not clear himself of the incident and was forced to take coercive measures.This incident caused quite a stir on the Internet, and Lei Xu and the Ninth Procuratorate were pushed to the forefront by unscrupulous self-media.Chen Tingyi was forced to stop Lei Xu's work due to pressure from public opinion.Du Ziyu never believed that Lei Xu would do anything to harm others. She searched for evidence to prove Lei Xu's innocence.Zhou Qiao's father Zhou Long died at home. Zhou Long's wife Qiao Li surrendered, claiming that she accidentally killed Zhou Long.The police found Zhou Qiao, originally wanting to know his whereabouts on the day of the incident, but Zhou Qiao opened his mouth and asked if it was about Su Da. The police realized the seriousness of the problem and immediately contacted the Ninth Department to intervene in advance.During the interrogation process, Zhou Qiao became emotional and refused to admit that he had arrived at the scene of Su Da's death. However, the testimony of the scavengers and the forensic examination at Zhou Long's home proved that Zhou Qiao was at the scene when the two cases occurred.