A group of ordinary college students accidentally entered a mountain hotel during a class sketch, but they never thought that this was an existence beyond the outside world. Inside the seemingly ordinary hotel were countless independent and parallel spaces. Darkness, killing, betrayal, and trials were approaching this group of students step by step. Life, this is a place deeper than hell. If you want to escape, there is only one way to go through each floor here alive. On each floor, there are different garden guards and different stories waiting for them. I am afraid that even they themselves are not sure whether it is real or imaginary...