Delivery boy Lin Mo accidentally wandered into a deserted alley at three o'clock in the morning and delivered food to a mysterious old man. Instead, he was stuffed with a yellowed ancient book. He originally thought it was nonsense, but found that he was forced to be involved in the strange world under the shadow of the city. The taboos in the manual are fulfilled one by one. On the edge of life and death, can he glimpse the truth in the midnight orders and break free from the gaze from the abyss?
