In 2003, factory safety officer Lin Chen was reincarnated and returned to the interrogation room where he was framed for the bombing. In a desperate situation, he activated the "Super Trace Deduction System" to expose the real culprit in public. He even accidentally solved the unsolved case of red-coated serial murders that had troubled the police for three years, and became a special criminal investigation consultant of the city bureau.
From a condemned criminal to the youngest expert of the Ministry of Public Security, Lin Chen relies on his unparalleled trace tracking ability to sweep away the dusty and unsolved cases: family massacres, bank robberies, inter-provincial abductions, corpse dismemberment cases... Every tiny trace is ironclad evidence that he brought the murderer to justice. As the investigation deepened, he discovered that his death in his previous life was not an accident. The tentacles of the "Longxing Society", the mastermind behind the scenes, actually reached to the top.
Rights for the living and words for the dead. Lin Chen started from Jiangcheng, traveled across the country and went international, tearing apart the "hell network" of the global black industry chain, and confronting the ultimate terrorist threat in a life-or-death showdown. He spent his life fulfilling his oath, rising from the dust, and eventually becoming a criminal investigation legend who protects the lights of thousands of families.