The casting for this film was definitely perfect, and they each performed their roles too well. The music, visuals and acting was stunning. It's a very beautifully shot film, and there was a lot of keen eyes for details. This is one of those types of films you /really/ have to pay attention to to understand the progressing story. It's not too fast or too slow paced, by at least 20 minutes into the film you're already in another world, but there are a lot of hints to look out for, especially of how the movie was put together. The movie starts off a bit tense, but the phycological horror aspect catches up quick before you even realize. It was my first time watching Hong Jong Hyun in a movie, and he was soo adorable as Hwan! Overall, this movie stays as one of my /weirdly/ comfort movies... and I've already watched it 3 times. Definitely high rewatch value for a stunning film.