Five criminals with blood on their hands and lives to answer for are suddenly dragged into a mysterious tower without warning. Every floor is controlled by a floor master with a similarly heinous past, and the rules are utterly cruel: if the floor master can't kill the players, every player dies instead. Zhang Jingwen, Liu Meng, He Fan, Zhang Hong, and Yu Mengze, two women and three men, shed every disguise the moment they enter the tower. Everyone lies and everyone schemes, just to survive this slaughter of human nature. Suspicion, betrayal, selling each other out, and murder follow one after another. No one is innocent, and no one can stay out of it. A staircase paved with blood leads ever upward. But freedom is not waiting for them, only an endless abyss of evil. In this deadly game where every player is a criminal, there will be no winners.
