A series of old cases in Fog City have been buried in dust for ten years. The young Ding Jingran was involved in the situation because of a suicide note from the deceased. He joined hands with the sharp and calm Cai Kexi, starting from an unnamed corpse, an old newspaper and a mutilated pocket watch, to review the truth layer by layer, tearing apart the shady intertwining of power and people's hearts, and step by step to liquidate those who had harmed others.