First off, the cast of this film is very worthy of credit. Tom Hiddleston (Dr. Laing) once again creates a character who is like-able but evolves into something unexpected. He develops fantastically into a completely different character. Similarly, Jeremy Irons's character (The Architect) evolves into something completely different. These two characters play off of each other so well that at times they seem to mesh together if that makes any sense at all.
The main reason why this film is a big hit for me is because of the artistry. The cinematography plays with symmetry and asymmetry so much that we get the sense of organization turning into chaos throughout the film. At times, I felt like a resident in the high-rise living a perfect life and then all of a sudden falling into a pit of wild beasts. Furthermore, the music plays with the idea of organization turning into chaos. A classical version of a famous rock song is played towards the beginning of the film and is replayed later in a weirder and much more disturbing fashion. If I were you, I would watch the film just so you could witness this. However, there are a lot of other things to witness in the film as well.
The Bottom Line: This film will twist your brain and make you question what kind of society can even produce this kind of cinematic art.