When the Hong Kong businessman violated Shen Mo, Mute arrived in time to fight with the Hong Kong businessman. This is the scene in the trailer where two men struggled with the hearing aid and dropped it on the ground. The Hong Kong businessman was killed by the two men. When Shen Mo and the others were disposing of the Hong Kong businessman's body, Yin Hong watched.Yes, it also corresponds to the biographies of the characters in the group. “He (she) did not have to die”. Shen Mo and Mute silenced Yin Hong and cut them into pieces.Wang Yang helped dispose of the body of the Hong Kong businessman and threw it into the steel furnace. Shen Mo put his fingers and documents into the Yin Hong body bag. The mute deliberately placed one bag in a residential area and threw the others into the sewer.

On the 17th, information about the escape after getting money from Hong Kong businessmen was leaked from Wang Yang. The police and Wang Xiang announced the pursuit of the murderer. Wang Yang persuaded his mother or to break away by himself and then followed. When Shen Mo was blocked, the mute sacrificed himself to lure away the police., Wang Xiang followed Shen Mo. In order to save Shen Mo, Wang Yang jumped into the river to stop Wang Xiang and was drowned. Shen Mo finally escaped.

Lao Ma believed that the murderer was not just a mute, but the director pressed for an explanation and closed the case hastily. Lao Ma angrily took off his police uniform and left. The person who was hit by a taxi in 16 years was Shen Mo who had returned. Wang Bei was most likely Shen Mo and Wang Bei.Yang's son, only in this way did Shen Mo have the motive to come back. The only two people who died were Yin Hong and Hong Kong merchants.