A serial murder case occurred in Tianyang City. The murderer was cunning and brutal, leaving the police at a loss. Er Shao Song turned out to be a crime-solving genius and an unparalleled old gangster. Hey! Are you here to solve crimes, or are you here to play rogue? Detective Captain, you old Shenjing Bing, don't pretend you don't know me, let's see if I don't knock you down.