Private detective Luo Datie returned to his alma mater and remembered the incident in high school more than 20 years ago that changed the fate of many people. He fell in love with Qu Qianqian, the most beautiful girl in his grade, but was forcibly separated by his teacher Gao Shizhan. As a result, he beat the teacher in anger and was expelled from the school. After Qu Qianqian left Luo Datie, she got together with Shangguan Chu, the best student in the class. Shangguan Chu was admitted to Tsinghua University as he wished, and then went to the United States with Qu Qianqian. Unexpectedly, after he got a professorship in the United States, he returned to China with his wife and worked at Jiangcheng University in his hometown in the provincial capital, which inadvertently disturbed some people's minds.
His son Gao Yu, who was studying at Tsinghua University, was the only pillar of Gao Shizhan's life. He was going to be admitted to the official postgraduate program, which made Gao Shizhan feel a great crisis and hurriedly went to find Luo Datie. Shangguan Chu's car accident revealed the trap set by his teacher 20 years ago. At that time, in order to achieve his special purpose, Gao Shizhan selected Shangguan Chu among his students who had good health and IQ. But when his game deviated from the preset track, he did not hesitate to drag the innocent Qu Qianqian and Liu Xiaoge into the game, which also affected the fate of Luo Datie and Ma Duo, and he did not hesitate to fight with their lives. Can the teacher be at fault? Teachers are also human beings, and they will make mistakes. The teacher's fault hurts the students and affects their destiny.
