Mysterious incidents occur in the darkness of the night, in a peaceful canal town in Southern China. A rapist lurks in the shadows of the night, hiding in the mist, searching for a prey. Schoolgirl Li is his first victim. Meanwhile, a young couple tries to make a living with their tiny street restaurant. While the rapist operates under the cover of the mist, a fat, wealthy and influential businessman openly pollutes their lives with fear and uncertainty. The villagers seem unable to cope with both the open and the hidden dangers they all face from their morally corrupted compatriots.