Deep in the old alleys of Linxi City, Yan Chen, the owner of "Chenshi Grocery Store", is a taciturn and ordinary businessman in the eyes of the neighbors. But no one knew that this introverted boss was actually a descendant of an ancient metaphysics family, possessing an unforgettable insight and top-notch exorcism skills.
The resentful ghost knocking on the door at midnight, the faceless shadow on the surveillance camera, the recurring terror in the elevator... One after another seemingly isolated supernatural tragedies are all engraved with strange mysterious patterns. When detective Chu Ning was at his wits' end, Yan Chen's "blind guesses" repeatedly revealed the truth, and the two were forced to form a strange partnership of "private detective + official detective".
As the investigation deepens, the evil sect "Blood Shadow Hall" is implicated behind the small case, and the mysterious consortium "Xuanshu Pavilion" is secretly stirring up trouble. In order to compete for the yin and yang node of the city, they did not hesitate to refine their souls to commit crimes and collude with capital. Their ultimate goal was actually the town boundary monument that the Yanchen family had guarded for generations. Once the monument was destroyed, the ancient monsters would break through the seal and devour the world.
A detective who pretends to be a pig and eats a tiger, interlocking conspiracies, and the yin and yang intertwined urban rivers and lakes, Yan Chen gradually uncovers the truth about family secrets and ancient seals in order to protect the people around him. When the leader of Xuanshu Pavilion sets off the ultimate storm, he will finally shed his ordinary disguise and use the power of metaphysics handed down from ancient times to end this ultimate showdown across the three realms of humans, ghosts and demons. After the dust settles, he will continue to be the guardian hidden in the alleys.
