In Bianjing in the Northern Song Dynasty, the Bian River flows through the city, and the roof fences hide the wind and moon, but they also hide the resentment and intrigue that have lasted for thousands of years.
The bronze mirrors beside the Bian River can enchant souls, the pearls in the treasury turn into sharks and people cry blood, the abandoned ancient houses echo the ghosts of the guests from the Warring States Period, and the missing painter is trapped in the fragments of "Along the River During the Qingming Festival"... Twelve cases of monsters come one after another, the dead are dead, the living are crazy, and the people in the city are in panic.
A young widower, who uses the "Resolution of Wrongs" to examine bones and vindicate grievances, is responsible for the murder of his family. The notes left by his father contain secrets closely related to the demon case; the down-and-out scholar, who seems to have no power to tie a chicken, is actually a descendant of the spirit suppressor who protects Bianjing. He can whisper with demons and understand the mysteries of yin and yang.
The two became attached to each other because of the Bronze Mirror Robbery. One was conducting autopsy to track down the murderer, and the other was channeling psychics to track down the traces. They were tracing step by step in the underground ancient capital of "Cheng Laocheng". They gradually discovered that behind every demon case, there was a broken bronze talisman, and in every roar of resentful spirits, there was a shocking conspiracy of the orphan from the previous dynasty.
Twelve talisman cards can open the ancient underground city. The blood of the Soul Suppressor is the key to sacrificing evil spirits, and his family was the victim of the sacrificial conspiracy that was exposed back then.
When the twelve demon cases are connected in a network, and the evil spirits in the ancient underground city are about to awaken, will the two teenagers serve as night watchmen in Bianjing, or will they become pawns to subvert the Song Dynasty?
In the thousand-year-old ancient capital, a chess game of life and death, cut through the demonic fog to see people's hearts. Under the bones, only the truth will not die.
