A scarlet invitation on a stormy night lures A Bao, Hang Zi, and sixteen others into an abandoned sanatorium on the outskirts of the city. The iron gates slam shut, an ancient clock strikes midnight, and a cold mechanical voice announces the rules of life and death: this is a faction-based game of Werewolf, and every member of the losing faction will be eliminated.
The special roles have hidden abilities, the werewolves disguise themselves and sneak about, and the villagers struggle through the fog. Every night brings a hunt, and every day is filled with lies and deductions. Mysterious figures appear from time to time, leaving behind vague clues and hinting at an even deeper conspiracy. As trust falls apart and the lines between factions blur, a third party even enters the fray. The players must risk their lives to find the werewolves and uncover the ultimate secret behind this space of death. This is the ultimate test of human nature and strategy. Only those who survive to the end can reach the truth.