Fog Lock Huangpu

In Shanghai during the Republic of China, rain and fog shrouded the Huangpu River, and a bizarre murder of a pawnshop owner began. Detective Shen Wei'an followed the "debt repayment" note, but he discovered the undercurrent of the Qinglong Society and the murder case at the dock. However, there are many suspicions in the police station, and someone is secretly obstructing it. Cases are intertwined, the shadow of a traitor emerges, and the truth is as difficult to discern as a river of fog. Shen Wei'an goes deeper and deeper, risking not only justice but also his life.