The film is borderline fantasy with very little real horror to be had, I say this only as I find it interesting that it is classed as a horror film. What it really is is a drama about the way in which children perceive adults and the interaction they receive. It is difficult to reveal more of the plot without spoiling the experience. I did find some of the pacing to be a bit slow and there were certainly scenes that I think could have been left on the cutting room floor, but overall this is quite a solid entry for Korean genre films and it is unusual to see films that place such a high degree of responsibility on the child actors.
The cinematography is quite beautiful and very colourful with some great use of saturation of background whilst keeping colour in the foreground. The soundtrack was a little week and very front heavy, but the film is mostly dialogue driven and for the most part was quite clear and concise.
The film wasn't quite as good as I was expecting, but by the same token I am not quite sure why I was expecting it to be any different to what it was.
regrettably I was unable to locate a trailer with English subtitles so until I do here is the Korean trailer: