Detective Long Chengming received a tip from the undercover that the old bandit girl who had robbed the government tax money was now hiding in a brothel. Long Chengming led his three capable detectives in disguise to arrest her. They were deceived by an old girl who was good at cross-dressing as a man and a woman. Later, Long Chengming caught the old girl. In order to save her life, the old girl gave Long Chengming a ring with the pattern of the Big Dipper, which revealed an astonishing secret. Long Chengming also began his thrilling and terrifying journey. During the investigation, they encountered strange and horrifying things: Tanxi Town, a strange place hidden deep in Mopan Mountain, creepy blood trees bleeding, villagers with strange behavior and behavior, corpse formations hiding murderous intentions in Tanxi Cave, carrion corpses killing people on the street during the day, psychedelic and addictive Shouxian Wine...
