There are not only bizarre rumors about the resident of Room 302 falling into the well, but there are also hidden keys that will return to their original places, dragging sounds and nursery rhymes that can be heard late at night, as well as unknown black shadows with red threads all over their bodies. As Chen Mo was "bound" by the key and forced to face various strange phenomena in the building, he gradually discovered that there seemed to be forgotten secrets hidden in the shadow of this old building, and everyone who approached Room 302 was being dragged step by step into the abyss by some kind of force...
