The movie is about these scientists that start studying patients in a coma and end up waking up the dead.
First of all, it was too short. I have become accustomed to long movies, and the "longness" is one of the things I take into consideration when I put my personal rating into things, for instance, to me any song that lasts more than 5 minutes is usually a good song. Of course there are exceptions, but that is where I set the bar. This movie was about 1.5 hours, and I wasn't happy about it, because I put all of my Saturday night entertainment into this, just for 1.5 hours? Come on. It's just too little time to get done with everything. People started to die too soon.
Then let's see the cast. It had too many TV stars. Not that I have anything against them, but why only TV stars? I was happy to see Evan Peters there, and I would like to see him in a movie about Nirvana; I think he can play Kurt Cobain perfectly fine. That Olivia Wilde woman is ok, I guess, but not memorable. I think she is used to play doctors. The other girl whose name I don't even remember cried the whole movie, and half of her dialogue was: "Frank... Frank...". I've only seen Donald Glover in Community. I can't make an opinion about him because his screen time was like 2 minutes. I felt sorry for him because his death was horrible, and it was like they said "hey, let's just be a normal horror movie and kill the black guy first". And Mark Duplass, who on Earth is this person? Didn't care for his character either. That's another question, was this a horror movie or a thriller, or what was it?
It was fine at the beginning. The team manages to resurrect a dog, but of course there are side effects. Something about the dog's brain building new neural pathways was mentioned, I wish they would have take a moment to explain to us, non-scientific folks what does that mean. What I got from that was that the dog was becoming "intelligent". Was I right? I will never know. There is a scene where the dog gets up in the middle of the night and goes to Zoe's bed and just stays there, staring at her. That was kind of scary (actually, that was the only scary part of this movie), and would have been awesome if they would have focus a little bit more on that. But no. They get all of their documents and data confiscated, so they decide to do the experiment again, just to prove they had the original idea, because now this big, evil corporation wants the rights on this discovery. Zoe forgets to remove her engagement ring and dies electrocuted. They bring her back from the dead, but she seems different and she is, but now more questions arise. Is she possessed by a demon? Is she Satan? Is she a zombie? Is she a demon-zombie? I'll go for the last one, but they didn't exploit the mystery that this could have been. Instead she does all the typical things demons do: kill people for no reason whatsoever, reads minds, throw things away, you know. Was this normal, standard demon behavior or was it super powers? See, they left us confused and with a lot of questions.
It's a shame that people have good ideas but somehow they get lost in action. They had two points of view there, Zoe was a catholic and believed in heaven and hell, and the boyfriend Frank is an atheist who doesn't believe in anything and thinks that all the stories about near-death experiences are just the brain having an overdose of its own drugs. They had the chance to try to answer these questions and apparently decided to believe the first one, as Zoe explains, hell is living your worst nightmare on loop forever, which might make sense, but still we don't know what was she, and the movie ends in such way that looks like it might have a second part.
I came out of the movie theater thinking, well, they had the money and they wanted to make a movie, so they did.