This drama has got very traditional, korean climate and fine, but I'm sure it's not horror. I suppose that cruelty of these people results from old beliefs, not in order to scare the viewer. Some strories are interesting, some less, but there is luck of elements of horror. I think that game light and this blue glow on mad zombies is really hopeless, so technically it's not good effect. However, I ought to praise the costumes! The traditional korean clothes are so beautiful and colotful!