There was quite a lot of messages in this film. But what really stood out to me was the message regarding Chinese-Korean citizens, which given the director's heritage isn't that big of a surprise. I liked most of the elements of this film, the performances were quite mesmerising and helped carry this ambigious film that I still can't figure out (evem after rewatching a few scenes). The ending (well, the middle) allows for an open interpretation for what happened. Even when given further background to explore, there is still an underlingering uncertainty to it all. Watch it and judge it by yourself.