Lin Zheng, the vice captain of the criminal police brigade, is investigating a shooting case in a suburban villa and locks up the suspect Zhao Peng Xiang. The second child of the Zhao family, an inspector who didn't want to be involved in the death of Zhao Peng Cheng, then becomes a wanted criminal. With the help of a secret investigation team dispatched by the Ministry of Public Security to investigate the truth, Lin Zheng not only faces confrontation with his relatives and loved ones, but also discovers his real identity.