If you enjoyed movies like Old Boy, Frontiers, Martyrs, and Audition, I suspect that you'll probably be enthralled by this film. This is a gruesome and highly disturbing horror story, set on a remote paradise island, where the inhabitants have largely shunned any interaction with the outside world. Kim is a young woman, bullied and tormented by her family, both men and women. The abuse is sexual, physical and verbal, and it is unrelenting. The first hour or so of the movie is a microscopic examination of how Kim endures these abuses, for the most part she just puts on a brave face and gets on with her daily chores. However, she is only human, and the effects of the abuse are cumulative and become too much for her to bear. Consumed with anger and hatred for her tormentors, she turns into a violent killer and goes on a stunningly brutal rampage, the closing half hour of the film has to be seen to be believed. There is no doubting that this film is profoundly sad, bleak and cruelly depressing, but it certainly works as a horror. The cinematography is beautiful, how could it not be when the film is set on a tropical island paradise. The acting is superb, without exception, and the direction is muscular and scalpel sharp. As soon as I viewed this on LoveFilm, I bought the DVD, and then viewed it again with my partner. She too was stunned into silence. If you like horror films, you have to wade through so much tripe before discovering a gem. This film, just like Old Boy, Frontiers, Martyrs, and Audition, is a gem of the horror genre, one which deserves the widest possible audience.