Gao Ren, a new police officer who was admitted to the Economic Investigation Detachment of the Zhongzhou Public Security Bureau, was "clear about all kinds of scams" because of his unique growth experience, and took the initiative to break into the fraud gang to conduct disguised investigations. The detachment leader Feng Ziying was good at identifying people and assigning them to positions. After obtaining the consent of his superiors, he assisted Gao Ren in going undercover in the fraud gang to grasp the movements of the suspects, obtain key evidence of the crime, and intercept the flow of stolen money. After several twists and turns, Gao Ren successfully infiltrated the fraud gang and skillfully transmitted important intelligence back time and time again. In the end, with the cooperation of his comrades, he cracked the fraud case, arrested the suspects behind the scenes, and recovered a large amount of stolen money that was cheated by the people. He made contributions to ensuring that the people can live and work in peace and contentment, and Gao Ren also grew into a qualified people's policeman.