A detective novel starring Zhang Zhijun, captain of the criminal investigation squad and an outstanding detective. His partner, Luo Xiaowei, is the deputy captain. Their investigative team also includes forensic examiner Liu Xiaojun, trace evidence investigator Huang Shaoliang, criminal psychology expert Xu Gaoming, computer expert Wen Jingjing, technical specialist Zhao Xueqing, and biochemistry professor Li Bowen. Together, they form a detective agency.
