On the night of the murder in Kaifeng Mansion, only the iron-faced executioner Gu Jiu and the cold-blooded widow Shangguan Zhining were left. A ghost bride demands her life, a nursery rhyme kills someone, a bank account destroys a family... Behind each of these mysterious cases, they all point to the shocking scandal of corruption in disaster relief fifteen years ago.
When the evidence was burned, the informant died tragically, and even the Ministry of Punishment badge was used as an assassination weapon, they were shocked to realize that the secret treason agreement was hidden in ambergris, the Cao Gang secretly printed the rebellion account book, and a spider web that swallowed up the country had been woven on the side of the Dragon Throne.
The burn scar on Gu Jiu's left hand hides the mystery of his life experience. Shangguan Zhining breaks the situation with blood. From the poison sutra in the dyeing workshop to the confrontation in the golden palace, the chain of evidence for fifty cases is like a knife unsheathed. Demons are rampant in this world, and they want to cut through the darkness and let the truth see the light of day!
