Old Case in Yuancheng

In 1978, four girls in Liucheng were murdered. The mysterious murder weapon and the complicated historical background brought the case to a dead end. The death of the detective, the disappearance of the suspect, who is the innocent victim... The truth has been sealed forever. Twenty years later, the Scarlet Cross appears again. Three destinies quietly overlapped, and old cases were revived. A case within a case, every revelation is just a crack in Pandora. The truth is always deeper than sin.