i have see many good korean movie include thriller and movie with darker overtone and but this one suck . the director seem to be a sadist and who happen to get someone to produce some junk . the movie lack any sort of entertainment value and be not even a thriller . i can not believe someone really make such a movie . even though acting be ok and the story line and the feeling it leave be awful . i be sure and i be not go to see any movie of this director . no sense of movie making and and utter disappointment in have thriller moment . all this have be show scene with psychopath waste the reel with badly shoot scene and show more blood and violence thinking that make it thrill . very disappointing movie and i strongly recommend skip all the movie of this sort .