Ma Lie saw the video and confirmed that the suspect was Wang Sihai. The police immediately began investigating and tracking. After some searching, the police caught the suspect Wang Sihai and launched a surprise trial. Wang Sihai confessed that he was instructed by someone (Chen Sidong) to attack Gan Xiao Nuan. It's just that Wang Sihai didn't know the true identity of the other party, he just thought he was a fellow. At the same time, the police also investigated Wang Sihai's family situation and clarified his motives for committing the crime. Qu Xiaoyi, Gao Dong, and Li Ke talked about the dark web dedicatedly. Li Ke found that the characters on it were similar to the characters on a piece of paper he found from the farm, and Gao Dong started searching. Gao Dong entered the dark web. Ma Lie saw Lao Tan's figure on the website. He remembered that he had met with Lao Tan, and said that he seemed to have talked with his father about business. The police immediately went to Ma Lie's house for questioning.