Bizarre murders have occurred one after another in Haijin City. The deceased were all well-known local businessmen or bankers. Their deaths were strange (it looked like an accident or illness, but in fact they were homicides). At the same time, a kind of "weird silver" whose authenticity is difficult to distinguish began to appear on the market. Its quality and weight are the same as real silver coins, but the core contains special ingredients. Once circulated in large quantities, it will trigger a regional financial crisis and even lead to the bankruptcy of Haijin's largest local bank, "Industrial Bank", thus triggering social unrest. This conspiracy to create and release "strange silver" and the true purpose of the serial killer are the major crises throughout.
