Are you looking for something different? This film is most definitely that. I am writing this in a post-hypnotic buzz after just watching this film and I'm still a little spaced out.
I think I just sat through 90 minutes of people yelling at one another in a mad demented professorial kind of way. The acting was real and everything fitted well. This movie keeps you thinking all the way through; it grabs your mind and sucks, then keeps on sucking.
This is not a horror movie, but it has a sharp edge of horrific to it. Jessup walks that edge throughout, in his passionate search for answers. This film has the feel of 'too good to be true', where you are aware that something is enjoyable but it could all go horribly wrong at any moment. Jessup keeps you balanced at that point, not knowing whether his next experiement will destroy him. Expertly done.
This is certainly not a 'live happily ever after' kind of movie. It will leave you with questions, but not the usual sort of 'huh, so what was that about?' which you get after some particularly bad script writing. Prepare to question life, the nature of the universe and existence.