The discovery of a female college student's body, shockingly missing a foot and discarded in an abandoned sewage tank at the old Asahi Factory, sends shockwaves through the community. The victim, Shen Xiao Zhou, daughter of a factory worker, triggers a high-stakes murder investigation. Seasoned police leader Lian Hai Ping is assigned to the case, unexpectedly partnered with young officer Shi Qiang Feng, who initially reported the grim finding. As the duo delves into the perplexing mystery, their investigation becomes a fateful journey, intertwined with personal secrets. Lian Hai Ping is forced to confront long-buried memories from his own past, while Shi Qiang Feng harbors mysteries that run equally deep. The more they uncover, the clearer it becomes that a powerful, shadowy force is manipulating the entire case. With connections to a partner's enigmatic background, a tragic first love, and a declining factory area, this complex mystery links forgotten truths to future revelations, revealing a dangerous undertow beneath the surface.
Other names: An Chao Ji Xiong, To Catch a Murderer in the Dark, Undercurrent, 暗潮緝凶