The play tells the story of Quan Wang, a criminal, who escaped from the detention center late at night after assaulting a police officer, and went to the Heather Building to place high explosives, claiming to detonate the explosives, creating a shocking case. Liao Fanghua, deputy director of Zhongnan Public Security Bureau, stepped forward and captured Quan Wang again. Later, Liao Fanghua served as the public security director of Heather City, determined to completely change the story of the chaotic situation in which vicious cases of Heather emerged one after another.