Houtong is an area in the mountains of northern Taiwan that was formerly home to a flourishing coal mining industry. Long ago many monkeys lived in its caves, but they have been exterminated by human beings. As memories of harsh working conditions in the coal mines are laid out through the testimony of the living, the dead who dwell in the ground and spiritual/divine beings are brought into sharp relief. A documentary steeped in imagination that is presented with beautiful visuals.