After his grandfather Lu Shoushan passed away, Lu Chenzhou discovered an abnormality on the way to the funeral and inherited the "Record of the Negative Mountain" and the twelve coffin nails. He started with a floor-to-ceiling coffin in Shimen Village. While solving a series of abnormal events related to coffins, cemeteries, old houses and relocation projects, he gradually discovered that all events pointed to the secret organization Guishanhui.
