Once again, Kim Ki-duk inserts his metaphorical finales that go way over my head. Does anyone understand his films on the first viewing, without analytical devotion? Eh, probably not, but who cares as long as there's wacky romance and momentary violence punctuating it. I was beginning to think I was going a bit crazy with the Japanese/Korean mix, but my stupid self forgot to relate it to the film concept about the dualistic yin-yang in daoist philosophy. A really intriguing concept, this idea that two seemingly unrelated characters when asleep become violently or sexually sonambulant and a witness to the sleepwalker, respectively. Directed in a sort of magical realist style, and a lot more talkative than Ki-duk's other films, this film's approach to the titular topic deserves more than one watch.