Genre: Mystery

Story: Yan Yuechu and his colleague Hu Zhi seek shelter from the rain in a rather unusual location after going out for late-night drinks: the structure housing Xu Aiyou's escape game, YY. Despite the game's notoriety and enigmatic owner, the pair decides to give it a shot. Yan Yuechu and Hu Zhi manage to finish the game in time with an hour to solve riddles and find their way out of a maze of unsettling rooms. The men, however, are deeply affected by glimpses of what seems to be Xu Aiyou's troubled past that are dispersed throughout the game; this impression is so enduring that vivid scenes from recent escape games start to creep into their dreams.

Story: A dazed Ning Yuan finds himself imprisoned by a menacing gangster named He Zhiyang along with hysterical doctor Su Jin after narrowly avoiding being captured. As he comes to terms with the group's newfound desperate situation, that they are trapped on an isolated island that harbors dangerous viruses, horrifying mutations, and hostile tribes, this proves to be the least of his worries.