I just love horror movies about revenge. It's always satisfying watching bullies getting what they deserved. Although personally, I think that this movie was still too timid in its revenge method. It could use more torturing and tormenting. Those bullies died way too fast and too painless. If I were Sae Hee's father, I would've gone I Spit On Your Grave on all of them. Or maybe doing it Jigsaw style, with some fancy torturing machines. But still, this movie hits the spot. I'm still satisfied with the ending. Not to mention that it's well acted and pretty creepy. To all horror movie fans, this one is a must see!