Qiao Dayong found song and dance troupe actor Shen Xia and threatened her with nude photos of Shen Xia. He also claimed that he knew that Yu Lu's death was related to Shen Xia and extorted money from him.Lin Chuan restarted the 12.6 case and found He Xiaoyun, the victim who had been imprisoned for assault by Qiao Dayong, but found that He Xiaoyun attempted suicide at home and her life was hanging by a thread.
After investigation, Lin Chuan found out that Shen Xia's dead brother Shen Dong was He Xiaoyun's fiancé. He also learned that Shen Dong had borrowed loan sharks from Qiao Dayong. In order to force him to repay the debt, Qiao Dayong beat He Xiaoyun until he became insane. Shen Dong alsoThe South died in a shipwreck.At this time, the police found a large number of Qiao Dayong's fingerprints in He Xiaoyun's home.