While sorting out his grandmother's belongings, antique restorer Jiang Shubai accidentally triggered a strange program in a gilt pocket watch and was forced to be involved in an interdimensional death game called "Phantom." The game is based on haunted houses and forbidden areas in the real world. Participants need to solve puzzles that hide the dark side of human nature within the specified time. If they are not careful, they will be swallowed up by the "rules" and even the traces of their existence will be completely dissipated. As he goes deeper into the game, Jiang Shubai discovers that his grandmother did not die naturally, but became the "gatekeeper" of the game, and the special blood flowing in his body is the key to unlocking the truth about the existence of "Phantom". In repeated confrontations with strange NPCs and players with hidden murderous intentions, she struggled to survive while piecing together secrets spanning three generations, but she didn't know that she had already become the ultimate target of the "Phantom".
