It tells the story of the Communist Party underground worker "old ghost" breaking into the Japanese pseudo-intelligence organization but being cut off at a critical juncture and facing the danger of identity exposure. In a crisis, the "old ghost" dealt with the enemy and tried every means to transmit information. (Source: Chinese = Baidu || Translation = MyDramaList) ~~ Adapted from the novel "Feng Sheng" (风声) by Mai Jia (麦家).