This is the 3rd South Korean film I have watched recently and have found them all to be of excellent quality. This one is a revenge film with graphically violent and gory scenes; I had to close my eyes a couple of times as it was too gruesome for me. The basic story is the fiancé of a murdered girl pursues her killer vowing to make him suffer the same agonies he put her through. There are a number of twists and turns with each protagonist gaining the upper hand at various points. The part of the villain is particularly well acted; although he is so evil there are some almost comic elements in his performance. There is a moral to the story of course, which becomes clear as it unfolds.