There are always voices murmuring from the strange paintings hanging in the old art museum at midnight. After the unemployed art editor Lu Yu mistakenly became a night watchman, he would be whispered to the forbidden corridor in the basement at 3:03 every midnight. He discovered in an ink painting stained by ink that the blurred landscapes were actually recording a soul-hunting ceremony that lasted for thousands of years - every drop of ink mark was the struggle of a devoured soul, every blank space was a body waiting to be filled, and the chants of ancient paintings that lingered around his pillow every night had already chosen him as the next person in the painting.