The play is based on the work experience of the famous forensic doctor Wang Xuemei. It tells the story of a female forensic summer firefly, a professional female forensic heroin, Li Xuekai, an expert in information analysis, and a natural information analyst Song Mi, and a wealthy second generation. The unconventional task force composed of Ying Ming, a mental profiler, gathered all sorts of people who did not fly in the bureau. Through concerted efforts, they had uncovered various bizarre homicides. Escaped three or four cities to create accidents as a means of killing, extremely vicious serial killer, became famous in World War I. The special case team subsequently uncovered the case of Nanshan Park's corpse. The bizarre murderous case and the capture of anti-detection consciousness were extremely strong. Brother killer.