Government officer Ling Choi Sin travels to the Black Mountain Village that is brand new, to help its people find water. Since he leads a group of volunteers the haunted mountain, he encounters a girl as well as a bevy of demons. After wooing her some candy, then he falls for her... and realises he is trapped in a lethal triangle. Another guy named Yan Chek Ha can be in love with Siu Sin. But ahead of the two men can settle their differences, they have to contend with the Tree Demon as well as a demon hunter who is determined to kill the beings that are unnatural.