This movie did what I have not seen many, if any, American or British-made zombie movies even try, and that's tell a believable, frightening, and tear-jerking story that will keep you interested all the way to the end. The only other zombie movie I enjoyed as much as this one is of a completely different genre, and that's Shaun of the Dead (a British comedy).
This movie had characters you loved and hated. This movie had a situation that was believable under those circumstances. This movie had actually scary zombies and situations that did not rely on cheap jumpscares to frighten viewers. This movie also had emotion, enough to make a grown man need a box of tissues by the end, and no I'm not talking about for the hot cheerleader girl.
Absolutely take a chance on this movie! The whole movie is Korean audio and English dub, which normally I don't enjoy, because I don't like to read my movies, but you will quickly forget you're reading subtitles after a short while because the story keeps you hooked.