Also not a normal day back at home. There are things happening here, that might and probably should alienate you. Some things are more than brutal (especially the depicted violence, just thinking about it, makes you shudder), other things seem to float along. It's a weird little gem, that is anything but mainstream.
If you have seen other Korean movies, you know there is a sensibility to some of them, that might not feel right for western audiences. But that is what makes movies like this so great to watch. You have no idea where this is going, nor what to think of the main character. Is he supposed to be good or bad? Will that question be answered or not? What is the movie trying to tell us? ... and so forth