Going to preface this review by letting you know that the sexual abuse in this movie is pretty graphic. And somewhat frequent. If that's something you can't handle, I would suggest not watching this movie. Story: The story, sadly true, is about deaf and mute children who suffer constant sexual abuse from the people paid to protect them. The movie is a lot more graphic than I would have originally imagined it being, and in the end, that's what makes this movie so amazing. It seems so incredibly real the whole time you're watching it that it just breaks your heart. Every scream, every tear, and every bit of abuse you witness on screen just tears you up inside. I really enjoy the pace of the movie. We get some time to see the main characters, build a connection with them, and see how affected they are by the abuse, and this movie leaves a huge impact on you because of that. Acting/Cast: Gong Yoo has been my favorite actor from the second I started watching Korean dramas/movies. Given the storyline and his ability to always grab me with his acting, I knew I wouldn't regret my choice to watch this movie. I was definitely not disappointed by this man. His ability to just jump into any role and play it perfectly is fantastic. Baek Seung Hwan, Kim Hyun Soo, and Jung In Seo all deserve praise for their acting in this movie. They all managed to portray abused children so perfectly that you believe every single second of it. When they cry, you cry; when you have to sit there and watch them get sexually molested, you cry. If you're anything like me though, even though each of their stories breaks your heart, Baek Seung Hwan's acting/character will just kill you. Jang Gwang also did a fantastic job in his role. Not only did he have to play twins; he had to play twins that both sexually molested students. Music: I only remember two songs from this movie, and that's only because they play a pretty vital role. Normally I would score low for that, but the lack of music playing in the movie really helped. Instead of distracting you with music, it lets you focus on everything that's happening. Rewatch Value: So far, I've watched this twice. I'm sure I'll watch it many more times in the future. Overall: Overall, this movie is sheer perfection. It's brilliantly told, the acting is spectacular, and it manages to just make you sit there and think long after you've finished it.