The film is based on real events from the Three Evils of Xiangxi - the Falling Flower Cave girl. Each year, the village of La'er in Xiangxi must sacrifice a young maiden to the mountain god, or else the entire village will fall under a curse, with strange occurrences abound... The daughter of the Gui family, Gui Tong, unfortunately gets chosen by the demons. Langde and Qifeng both deeply love Gui Tong.