A province-wide campaign to crack cold cases is in full swing, and the clearance rate keeps climbing. Yet in Kaishan, an eighteenth-tier prefecture-level city, three old cases remain unsolved! The provincial public security department sends Guo Huaming, a professor of criminal psychology, to Kaishan to help with the investigation.
At the time, Cui Ming, captain of the major crimes squad in the Kaishan Criminal Investigation Detachment, is so tormented by the June 19 serial murder case that he can neither eat nor sleep. The arrival of Guo Huaming and Li Yifan helps Cui Ming solve a case that even the provincial department’s veteran investigators could not crack. From then on, the three of them join forces to solve one case after another. Whether it is a cold murder case or a sudden killing, no matter how baffling the case or how perfectly the culprit has planned things, nothing can match the sparks that fly when the three work together.
One brutal, tragic, terrifying case after another reveals one deranged, evil, and pitiable soul after another. They may not be as far removed from us as we imagine. Many could be just one step away!
