After a physical examination, Interpol Lu Nan found that he didn't have much time left, so he decided to review the knotted cases or unresolved cases over the years, so his fellow apprentice Shen Heming accompanied him back to his hometown of Panhai. Unexpectedly, the day after returning to Panhai, a series of shocking cases occurred in this fifth-tier town. Lu Nan and Shen Heming originally did not want to stay too long. , But due to the persuasion of old colleagues and police school alumni, he had no choice but to end his vacation early and join the investigation of the task force. At this time, Shen Heming's former classmate Yi Zhiyu, a disabled girl, seemed to be inextricably linked to the case, and her brother Yi Zhiyan, a senior professor at Panhai University, also came into the police's sight.
Purpose: The integrity of the criminal police