The opening of the movie shows a shocking scene, which for me set the mood for the rest of the movie and helped grab my attention. Story: Let's be honest, it's not original. I've watched, at least, one other movie where the witness of a crime is blind. It, also, falls into thriller movie cliches, which makes it ordinary, but that doesn't not mean it's not good. It's actually quite absorbing and you can't help but to give all your attention to it. Also, I love the camera work and the way they blended the world of the blind with the world of the seeing in some scenes. Acting/Cast: I liked the acting. I thought the ways the characters interacted with each other were very good. I'll admit I had my reserves about it after watching Kim Ha Neul in "You Are my Pet". She had failed to impress me in it. But I'm glad I watched this. She plays a totally different character than she did in YAMP, and does a really good job of it. Yoo Seung Ho is quite impressive in it too. Music: To be honest, it wasn't bad, but it's quite forgettable. But it did what it was supposed to do in the moment, accompany the actions and pace of the movie. I'll re-watch this movie eventually since I really enjoyed it.