The story is good, interesting and enjoyable! it's fairly significant that the story is a little bit inadequate but frankly to say i really don't care at all! I watch this because of kim sae ron and it's really worth waiting ! i really love it it's really good as i expected. It will contain my satisfaction OMG ! feel really happy! haha :D For me the cast is impressive using disabled characters it's remind me the movie BLIND spit of it's different story but same genre. That feeling that you want to see the next part. About the music i don't know? half of the movie i watch it without a single sounds !!! i will definitely re-watch this movie and next time ill watch it in morning with my brother and my mom :) Generally for those who like this kind of movie why give it a try? i don't know why it's low rating! i think it's more than enough for daily entertaining ! Anyway Thank you GEANINA for the LINK: http://www.gooddrama.net/korean-movie/manhole-2014/2-1