Because his friend accepted an unknown order, Nie Shuang and his friends returned to their hometown, but they were repeatedly attacked by ghosts.
When she returned to the village, she saw no living thing except her yard, and the people in the town seemed to have no idea.
The ensuing errands in the underworld, friends captured by ghosts, ghosts and preserved objects that appear inexplicably... Everything points to an event from hundreds of years ago.
What is the truth? Who is she?