College student Luo Xiaoyang returned to his hometown for a funeral and found that his grandfather died with his eyes closed and in a strange manner. On the night of the burial, his grandfather, wearing a shroud, appeared in front of the bed and fanned him. Not long after, the villagers who participated in digging graves became increasingly depressed and lost consciousness every night, kneeling down to worship their ancestors' graves. When he was desperate, Luo Xiaoyang met a mysterious shoemaker by chance and learned that his loyal grandfather was actually a lost corpse exorcist. In order to protect the safety of his family, he took the initiative to bury him alive in the dangerous cave of Nine Lions and Elephants. In order to save his relatives, Luo Xiaoyang broke into the strange world of yin and yang, and was successively encountered by yin chickens demanding their lives and paper men chasing after them. He slowly found out about his grandmother's secret past, and was shocked to realize that he was the last key pawn in his grandfather's life-saving plan.
