When a curious historian stumbles upon a hidden passage in the Forbidden Palace, she triggers a series of chilling events that reveal the ancient curse of Xishi's Hidden World, leading her into a terrifying confrontation with the spirits of the past....

Deep in the heart of Qiantang, an ancient mirror harbors dark secrets. When a young historian, Li Wei, uncovers the mirror, he is drawn into a web of folklore and the supernatural, leading him to confront his own past and the fate of a forgotten kingdom....