The talented detective Wen Shuo grew up in a family of criminal investigators and has an ability to capture details and logical deductions that are far beyond ordinary people. He was drawn into a world of ghost story dungeons woven by special rules. Each dungeon corresponds to a dusty and bizarre case. Wen Shuo needs to rely on his ultimate reasoning talent to break through the layers of fog under the restrictions of the strange rules, identify the real murderer, complete the case, and escape from the mysterious realm that may swallow the violator at any time.