Chen Yan, an ordinary criminal police assistant, was involved in a series of cases spanning twenty years due to an accidental witness - on the surface it was a disappearance case, an accidental death, and a business dispute, but in fact it was a carefully laid out bloody chess game. He has no background, no backing, and he hasn't even gotten a police card yet - but he has eyes that can see through lies, and a heart that will never admit defeat. When the truth was peeled away layer by layer, he discovered that he was not just a witness - he was the carefully designed last piece in this chess game.
