Chen Mo, a Taoist priest who returned to secular life, returned to his hometown after 20 years of absence, but children in the village disappeared one after another on rainy nights. The villagers kept silent and only secretly circulated the ancient legend of "living human piles" - when the stone bridge at the entrance of the village was completed, a boy and a girl were buried alive under the bridge piers. Chen Mo discovered that a faded Nuo opera puppet was hidden in the underwear of the missing children. He followed the clues to the abandoned ancestral hall and was surprised to see that the walls were covered with Nuo dance masks from previous generations of sacrifices. Human blood stains oozed from the walls under the masks. That night, the elders in the village gathered in the ancestral hall to discuss secretly, and the leader was actually the clan leader who presided over the living pile. Chen Mo sneaked in to eavesdrop and learned that they planned to sacrifice children again to appease the "Wrath of the Bridge Spirit". He rescued the chosen child, but was surrounded by villagers in the ancestral hall. The patriarch laughed maniacally: "Do you think the children who were buried back then were really dead?" The floor tiles of the ancestral hall collapsed, revealing two white bones embracing each other deep in the bridge pier - in the arms of the white bones, they held the amulet that Chen Mo wore as a child.