A brutal murder case in a chess and card room plunged Gao Jiaming, captain of the Criminal Investigation Detachment of Jinshan City Public Security Bureau, into confusion. There are countless clues to solve the case, and the information provided by an "enthusiastic member" Jiang Wentao is suspiciously accurate. Jiang Wentao always appears at key points in the investigation, and what he casually says happens to be the next step in the investigation. As he got closer to the truth, Gao Jiaming suddenly realized that this seemingly cooperative witness might be directing his own murder-hunting script. And the silent handle of the knife contained his unexplainable body temperature.
