This novel takes "the pursuit of the truth" as its core proposition and deeply explores the boundary between justice and revenge, the game between rationality and obsession, and the confrontation between system and corruption. In the process of investigating a series of murders, the protagonist Qin Chuan must not only face the hunting of external evil forces, but also break away from the shackles of inner trauma. He must find a lonely and courageous path for a "case solver" in the cracks of institutional rules, human weakness and the whirlpool of fate. Through the layers of nested mysteries and the thrilling pursuit of the murderer, the story explains the core theme of "real justice is never the perfection of the result, but the perseverance in the pursuit."