Kikareta onna no mirareta yoru

This one got me by surprise. Although it plays on some general misconceptions, if not prejudice, about Japanese, it offers a very interesting take on human relations.

A guy moves into an apartment and meets an attractive neighbor living in the flat next to his. He becomes obsessed with her and stalks her with some audio equipment.

With time we meet her boyfriend who is a control freak. It is not clear whether he simply stalks the girlfriend or whether it is their role play, yet she is submissive and accepts the relationship as it is.

So, there are two guys stalking a girl, but only one can win her heart.