Luo Song finally realized that Gao Chuan's judgment was correct. Cheng Fenghua was not a D-man. Duan Yejun was bought by weekly travel and provided false clues, which led to Cheng Fenghua's injustice in the nine springs. Dou Guoqiang sighed, it was a pity that Gao Chuan died and could not see Zhou You being killed, so he was repaid for his great revenge. When talking about Gao Chuan, Luo Song suddenly thought of seeing a man with familiar movements in the surveillance video of Han Wen’s bar. Except for his different face shape, his every move is very similar to Gao Chuan. From this, it is inferred that Gao Chuan is probably not dead. He quietly followed Han Wen just to find the murderer who designed to kill Cheng Fenghua. If the inference is true, the person who killed Zhou You is likely to be Gao Chuan, and the only person who knows Gao Chuan's whereabouts is Qin Hongyan.
Luo Song and Dou Guoqiang went to the repair shop to find Qin Hongyan. When they heard that Gao Chuan was not dead, Qin Hongyan's eyes lit up. Luo Song asked if he knew where Gao Chuan was going. Qin Hongyan blamed the police for not having any evidence and concluded, and issued another order to expel the guest. When Luo Song stood up and was about to leave, Lele suddenly ran out of the room and told Gao Chuan's hiding place.
Han Wen asked Yan Bingdong to let herself go and use money to tempt him. Yan Bingdong was unmoved and threatened to hand Han Wen over to the police. When he thought that Han Wen had done so many evil things, it was difficult to breathe even if he left it to the police, he planned to cover Han Wen's head with a plastic bag, causing him to suffocate to death. Han Wen pretended to be pitiful, telling that when she first came to the city to work hard, she was forced to become a single mother, so she became a villain to protect herself and her daughter. Seeing that Yan Bingdong believed her, Han Wen proposed to write a letter to her daughter. When Yan Bingdong handed over paper and pen, Han Wen suddenly wrapped around Yan Bingdong with iron chains, preparing to strangle him to death. Luo Song led the team to arrive in time and took Han Wen back to the police station.
Yao Qianxiao extracted Gao Chuan's DNA from Yan Bingdong's residence, and immediately issued a wanted order for Gao Chuan. When Qin Hongyan was shopping, she saw the wanted order and called the lawyer to stop defending. When they returned to the repair shop, they found that Takakawa had returned, and the two hugged each other excitedly. Gao Chuan told Qin Hongyan that he had said goodbye this time when he came back, and he decided to surrender himself. Qin Hongyan blamed Gao Chuan for completely disrupting his life. Gao Chuan also said that he thought he had no worries, but only realized during the days of his escape that he began to care about Qin Hongyan.
The next day, Gao Chuan surrendered himself at the police station, admitting that he was sheltering Qin Sanbao and deliberately killing Zhou You, all of which were his own actions. Luo Song couldn't help but start to blame himself. If he believed Gao Chuan's prediction as soon as possible, he would not end like this. After the interrogation of Gao Chuan, he remembered that Yao Qianxiao analyzed that Zhou You's death was about 9 pm, and there should be witnesses during that time. Moreover, the weapon was not found, so Gao Chuan could not be easily convicted.
When the data clerk called and said that on the night Zhou You was killed, someone appeared at Zhou You’s mother’s house. Luo Song hurried to the old lady's house. The old lady told Luo Song that the man who appeared at home that day had murderous aura. Although he was blind in glasses, he could feel it. Luo Song provided an audio of Gaochuan's speech, and the old lady was sure that the same person appeared at home.
Luo Song concluded that Gao Chuan was not the murderer who killed Zhou You, but Gao Chuan spared no effort to protect the murderer with his life, so he became more suspicious of the identity of the murderer. Returning to the police station, Luo Song restored the incident to Gao Chuan that day, but Gao Chuan did not admit it. Luo Song began to analyze the people who were more important to Gao Chuan one by one, and suddenly thought of Cheng Yunhao.