Who has read the detective investigation files? Tao Dayu and Guo Keying edition.

Dayong hid in the village. After Si Long resigned, he didn't leave. He was also in the village. Si Long called Zhong Yi, and they analyzed the case together in the village, and finally thought that the murderer should be Zhan Baihong. I went out to investigate the case and finally found evidence that Zhan was the murderer. They found Lei Xiaofeng (the boss of Dayong in the first two movies "madem") for help, and Lei officially took over the case. Meanwhile, Zhan went to the hospital to try to kill Nagata. At the critical moment, Dayong and them arrived. Gao Jie has arrived. Zhan took the opportunity to hold him hostage, and Dayong risked his life to save Gao. Gao confessed to Dayong and became husband and wife again in the afterlife, so he was injured by Zhan and fainted. Zhan was arrested and confessed to the crime. Nagata also woke up. Gao Jie didn't wake up. Nagata and Gao Jie's aunt got married, and the flower ball was thrown to Si Long, who gave it to sasha vujacic. Si Long was going back to Canada with his sister, and Zhong Yi chased him to the airport and begged Si Long to stay (that confession was particularly touching, and you can find a summary of the classic dialogue online). Si Long is finally with Zhong Yi, and Sasha wants them to go abroad. Gao Jie finally woke up in the last few minutes and remembered everything.