The shaking tablets in the ancestral hall, the sound of nails scratching on a rainy night, and the strange runes beside the villagers' remains. Every bizarre murder case is closely linked to the secrets of ancient sacrifices; and behind the strange law of "obeying the rules means surviving", there seems to be a double lie of plague and sacrifice. Shen Yan followed the broken clues in his notes and discovered that the disappearance of his mentor and the tragic death of the villagers were closely related to the family blood feud and the lost taboo ritual that were deliberately buried a hundred years ago.
