A single mother and her daughter are forced to stop by a black car on the way home. When they regain consciousness, they are in a Karst cave with seven strangers. The game is to find out a killer among the nine.
Overview：A single mother and her daughter are forced to stop by a black car on the way home. When they regain consciousness, they are in a Karst cave with seven strangers. The game is to find out a killer among the nine.
