The police detected that Su Muxin's bank card had moved and immediately organized the arrest, but only caught a few young people who had stolen it. After interrogation, they picked up the bank card from a mobile phone store.At the same time, Zhou Mi was negotiating with Su Muxin's uncle Su Guangyao in Anhe City, preparing to take him back to Dongjiang for DNA comparison. At this moment, Zhang Dongliang called and told her that the police had retrieved surveillance from the mobile phone store, confirming that Su Muxin was still alive.

The direction of the investigation was in a serious error and was frustrated.It was not until Su Guangyao informed Zhou Mi that Su Muxin had an unknown brother, Su Mufan, that the case had a turnaround.Su Mufan is a blind man. He has lived in a blind massage parlor for more than ten years. It was not until before the incident that he contacted Su Muxin. Su Muxin was very frightened that Su Mufan was still alive in the world, and there seemed to be an ulterior motive between his brothers.With the help of Chen Shuncai, Su Mufan followed Su Muxin's home, but accidentally broke into the crime scene where Qu Tong killed Su Muxin.