I was also fooled by the synopsis and the trailer. I suppose if you read about a horror movie based on physics theories you expect an interesting plot. But this movie has no plot at all. All you get is one of the characters explaining some theory in an extremely broken English, so good luck understanding that.
There are a few good scenes like the ones showed on the trailer, but between those there are painfully slow-paced shots with two characters who are apparently unable to talk about what the hell is going on because of language limitations (why was it written in English anyway?). Halfway through the movie I wondered if it would end with them putting out a hashish pipe and coming back from a really bad trip.
Imagine you are having a series of visions so disturbing you cannot discern what is real and what is not anymore. Someone you know wakes you up and asks what happened and you say "I don't know, let's take a walk/get some rest". This dialogue repeats itself a few times until someone finally says "Uh, a bad dream...? Let's get something to eat."
I agree there must be something wrong with the positive reviews. They are trying to create an Emperor's New Clothes spiral of silence, implying that this movie is so sophisticated it will only appeal to a few select bright minds, when it's simply bad.