In Qingshan Town, a small town in the south, there is a strange taboo that "if the paper coffin is not dropped to the ground, the living person will not be entered into the tomb". Twenty years ago, a fire broke out in the old house of the Li family in the east of the town. Everyone in the Li family disappeared mysteriously, leaving only a gilt paper coffin engraved with charms. From then on, every rainy night, the sounds of children laughing and wooden fish tapping could be heard from the old house. Some villagers even went insane after entering by mistake. Nowadays, mysterious incidents occur frequently again, intertwining the fates of folklore researcher Luo Zhao and antique restorer Li Yanqiu who are accidentally involved.
