The legendary terrible Mang Pao, the ominous gestures of the old man at the gate of the prison, the topic everyone avoided, the "Laoshun" who had never seen but feared like snakes and scorpions, a mysteriously missing prisoner ... All these are matched with the harsh living environment: seemingly endless walkways, playgrounds in valleys surrounded by cliffs, and no immediate contact with the outside world ... uneasiness, grotesque, and terror grew gradually. What will you do when the environment deceives you?"
