The world is afraid of ghosts and hates their evil, but they don't know that the most terrifying thing is never the ghost itself, but the endless suffering and indifference inflicted on the weak in the world.
For thousands of years, countless people died unjustly and tragically, and their hatred was locked in their homeland, unable to reincarnate. They turned into earth-bound resentful spirits and became mysterious murders that were passed down in the market from generation to generation.
Affiliated to the top-secret Seventh Special Case Team of the city bureau, six people, two women and four men, travel through the yin and yang, investigate illusions, and resolve all the eternal knots that have lingered in the world.
Yang Mo, who is cold and self-possessed, with compassion in his heart; Yu Nancheng, who is restrained and guarded silently with deep feelings; the bright and warm years, which can heal the soul; Pang Pang, who is familiar with ancient and modern folklore allusions; Zhang Yun, who is rational and silent, deducing all the paths of cause and effect; Jin Yang, who is hot on the outside and lonely on the inside, and knows the sounds of the netherworld.
An old amusement park that has been abandoned for thirty years has a horrifying legend of cannibalism circulating. Under the foundation, Jiuniang, who died of hatred in the late Ming Dynasty, is imprisoned. She suffered a lot of humiliation for half her life, she hated the cold world of mortals, and buried herself deep in the loess with resentment. She stayed here after being disturbed by the earth, jealous of the stability of the world, and wantonly led people into the illusion, causing a series of tragic disappearances.
Afterwards, the wronged woman weeping blood in the cold river, the soul of the wronged monk who rang the bell every night in the ancient temple, traced all the way to the secret of the massacre that has been sealed for thousands of years in the ancient village in the mountains.
They do not rely on killing or Taoism, they only seek to clarify the cause and effect of eternal injustice, resolve the frustrations of hundreds of generations, and eliminate the hatred and regrets that have lasted for thousands of years in the world.