I was kinda surprised by this movie. Overall, it's not really a horror movie. It starts like one, with all the suspense, dark corners and those special asian girls crawling on the floor, all wet hair and moving strangely. At some point I thought it was something like 'A Tale of Two Sisters', but it's not. But the turn in the middle of the story was quite a surprise and left me less anxious. I was more relaxed while watching but it was nevertheless still exciting. In fact I enjoyed it even more. The beginning was a bit too calm and maybe a bit boring. I guess the producers were trying to create a really oppressive atmosphere but that didn't work out that well. Therefore the second half of the movie was more interesting (although a little more suspense couldn't have hurt). Focusing on the little details... The scenery/setting was quite nice. I enjoyed looking at the places and the school. Also the make-up. It didn't show much but it was effective, well placed and did add to the atmosphere. The acting of the girls was also a plus (not the principal though - too hollow). I'm starting to recognize Park Bo Young's skills. I already saw her in 'Oh My Ghostess' and 'Don't Click' and I liked her acting so far. And since I didn't watch 'A Werewolf Boy' yet, I guess I have to continue with that one. Don't mind my rewatch value. It was a good movie but I don't think I will watch it again.