When Gu Linyuan rented a room in Qinghe Apartments for an absurdly low price, he thought he'd stumbled upon an incredible bargain. But from the moment he stepped through the door, he was completely cut off from the outside world. Dense fog lingered beyond the windows, his phone signal was always dead, and the only guide to survival was the yellowed sheet of paper nailed to the back of the door: the Qinghe Apartments Resident Rules.
