This is , in fine, more of a mystery than a horror flick, though there are tropes referencing modern urban horror, which if you have been exposed to Korean cinema, can be employed to great results : not that this drama handles it poorly, but there are moments when the narrative seems forced by plot requirements, as against a cause and effect concatenation that propels the really, singular pieces of cinematic art. Still and all, this is a nice change of pace, with enough entertainment quotient to make it worth your while, has nice twist and clever misdirections. But for, some unreal and contrived instances, there is not much to find fault here — greatly commended.