Perfect Movie and the end explains it all - SPOILERS
To explain the last scene with words. Maja and David are sitting at this pool, without Leonie their daughter. Leonie is in another (better) world. All what both have tried to do, they sit there with empty hands.
Is it Science Fiction or Fantasy or crime? During the movie, Yes. But there is this ending. I think, it is simply a movie, a drama about a man, who tries everything to come over his loss or to make it unhappened. But nothing really works. Maja comes later and comes to the same result. They let her go. And they closed the door. At the end, nothing has helped. They are with empty hands. But I think, they have learned something for them.
This is one of the best endings of a movie, for quite a long time. Because there is no happy end, but still there (possibly) is.
Digital_Data
http://www.youtube.com/LiebensteinMovies