For cheap rent, Lin Lan moved into Jin'an Apartment 404. That night, he picked up a beautiful woman who was unconscious in the bathroom - her first words after waking up were: "Don't open the door to the second bedroom." The anomaly investigation team quickly sealed the scene and listed him as the number one suspect. Only Lin Lan himself knew that from the moment he stepped into this room, he "saw" things that ordinary people couldn't see: the afterimage of blood letters on the wall, the danger signs floating in the air, and the inhuman aura lingering on the woman next to him. The official archives mark 404 as "Y-07 Unregistered Node" - a strange house that automatically matches residents in the rental system, has always been blank in monitoring, and has the status of the second bedroom showing "occupied". And Lin Lan has become the latest "sensor" of this node. As the women who claimed to have renewed their lease moved in one after another, he gradually understood: This room is a bait, designed to catch those "inhuman" existences wandering in the shadows of the city. And he is both the watcher and the prey being observed. Between the official investigators, the mysterious landlord, and the dark shadow trying to silence him, Lin Lan must use his newly awakened perception to piece together the truth of 404 before the temptations and dangers of the witches in the room come - Who is behind the scenes to screen out "abnormalities" for this city? And why was he chosen to be the eye of this node?
