Late at night at the Women's and Children's Hospital, the sound of scratching nails came from the third floor of the morgue. The nurse on duty disappeared for three days, and surveillance cameras only captured a red wedding dress floating into the abandoned delivery room. The criminal police team was helpless, so Jiang Hengmo, a specially hired folklore consultant, pushed open the rusted iron door alone. He saw the female body sitting up and the fetus in her belly squirming - it was Liu Lian who died in childbirth thirty years ago. The moment he walked through the ghost land, anemia and dizziness hit him. Jiang Hengmo bit the tip of his tongue to draw a talisman, only to find that resentment enveloped the entire ward. The membrane here is as thin as a cicada's wings, and the cost of the containment spell is three years of life. "I will forget who I am." He tore off the talisman and let the darkness swallow him. The files of the Xuan Supervisor Division record that after each strange detention, the executor's relatives and friends will gradually lose their memory of him. But Jiang Hengmo must hold on - beneath the mass graves in the deserted village lies the truth about his sister's murder. And the ancient temple altar that has been offering sacrifices for thousands of years is waiting for the last living sacrifice.