From November 1937 to February 1938, the Wujiang River in Chongqing was turbulent. Inspector Gu Changdu acquired the power of "trace retrieval" due to a dead game, and he also suffered from nosebleeds, dizziness, and fragmented consciousness. From a low-level case handler, he investigated the gang's black account, Pao Ge's cousin, and the Fuxing Society's secret service. He accumulated reputation, identity, and enemies in successive cases, and gradually discovered the Japanese dark web lurking in the mountain city. Only when he stood at a higher position did he realize that what he had solved was not a few isolated cases, but the beginning of a conspiracy that was approaching the entire Chongqing.
