After wrapping up a difficult trial, award-winning lawyer Li Jianheng suddenly passes out over dinner. When he opens his eyes again, he is trapped in a sealed room and forced into a live-action game of Werewolf that uses lives as stakes. Lies, suspicion, and murder go on day and night, and being voted out in any round means dying for real. Relying on the logic and rhetoric honed in the courtroom, he maneuvers between werewolves and villagers, trying to uncover the truth behind the endless loop. But every seemingly victorious finale is merely the start of the next round, and no one knows where it all ends.