On an autumn rainy night in Chang'an, a wealthy businessman died in a secret room. The gears in his chest were reversed, and the water leaked and flowed backwards. Xie Mingwei, the young minister of Dali Temple, was at a loss and had no choice but to turn to Mo Yan, a former Mohist genius with a perverse personality who already had a Qianji prosthetic arm on his left arm.
The venomous organ master and the sassy female officer were forced to join forces to track down a series of bizarre organ murders: a singer was strangled to death by a silent silk string, a bronze mirror could focus light and burn the corpse... All clues pointed to Mo Yan's senior brother who had long been buried in the sea of fire, and a conspiracy to subvert the government and the opposition.
When the flames of war suddenly rose in the north, and the barbarians drove the two-foot-high war beast to knock on the gate, Mo Yan discovered that the murder was just a prelude. He must find a technical "balance" between the killing weapon and the important weapon for people's livelihood.
A huge gamble about institutions, people's hearts and the world has begun.