I'd say that the plot may be marginally confusing as you're watching the film, but as it builds on itself, it begins to exhibit many thematic and stylistic choices that I believe help you make sense of the movie. This movie is not your average stereotypical horror movie; there're no jump scares, no deep-seated music scores, and is materially built on psychological appeals. The cinematography of this movie is very opportune. A lot of choices made by Von-Triar may not happen often in cinema, but I believe it works in this movie. It is art house, and the craft that Anthony Dod Mantle brought to the table certainly defined the tasteful filming, lighting, and colors that visually expressed the disposition of the narrative. This movie is grotesque at times, but I believe the film gets away with it. It is a contemporary film that successes a collection of fears and unlocks deeper contemplation of our world.