Watched it at the local cinema just now. I watched it because of Gong Yoo and Ma Dong Seuk so I don't really care about that zombie storyline. Turned out the storyline was good. The movie will catch your attention right from the start. The pace was nice, there are no moments that I found boring. The storyline is clear, it tells you what it wanted to tell, nothing requires critical thinking. You just ponder on what should they do to survive that zombie attack. Yes, there will be some scenes that are going to disturb your emotions. Sometimes you feel like you want some characters to die fast because they are plain annoying, even at some points Gong Yoo will annoy you. He delivered the selfish role right. Kim Soo An also delivered her role well, I am impressed. Ma Dong Seok is a sweetheart, I really like his role here. No songs whatsoever have been used as the background except Soo An's singing and the ringtone. But then the sound effect that they are using are appropriate at the correct time. Typical of zombies movies to have that sudden shock effect on the viewers, so be alert all the time. You will never know when a zombie will appear. Tho personally I think they can give a better ending, this is a good movie indeed. Maybe I will rewatch it again 5 years later, it still leaves quite an impression to me. Go watch it, it's worth your time.