Unfortunately all too many people who reviewed this movie just didn't get it. This is NOT "The Three Faces of Eve"; nor a Dr. Jekyll & Mr. Hyde story; nor is it a Star Trek "mind meld". Instead, we have a story involving TWO SEPARATE and VIABLE CONSCIOUSNESSES inhabiting a single body going about their separate lives, though they have a unique way of communicating with each other. While their relationship is positive to a point, their desires, behavior, and lifestyles are quite different; and therein lies the problem. They even have a set of rules as to how to comport themselves when going their separate ways. A single violation could prove disastrous. That alone adds considerable stress to their independent lives. Each individual consciousness is allotted half a day - one from 7AM-7PM, the other 7PM-7AM. Neither one knows or is aware of what the other is doing or has done until after the fact once each alternate consciousness takes control. They are truly living separate lives. But for how long and it what form? Played by the up and coming star - Ansel Elgort (Baby Driver, November Criminals) - this film poses many unanswered questions: Do we really have only one conscious existence? Can we live a reasonably "normal" life with more than one? Is one more dominant than another if we did? What is the responsibility of each to the other? What is the definition of "living" itself? How does the behavior when one consciousness is in control affect the physical and mental well being of the other one when the latter is dormant? Elgort makes his character(s) totally credible and deserves far more positive critical response than he received.

The always reliable Patricia Clarkson plays the part of their doctor/mentor and comports herself exceedingly well. The problems that each consciousness faces are emotionally gripping. The resolution (NO Spoilers here!) to the conundrum of this storyline may not please all. Nevertheless, it is philosophically thought provoking and is worth watching if for no other reason than it is an escape from the mundane. One reviewer compared this film to a TV series "Do No Harm". I would also suggest a little known TV movie titled "The Two Worlds of Jennie Logan" with Lindsay Wagner (of Bionic Woman fame) as well as certain aspects of Amazon's mini-series recreation of "The Man in the High Castle".

I enjoyed this movie. I found it to be quite thought provoking, and proof that a movie does not have to be high budget in order to be good. The movie starts out a a little slow, but builds interest as we see a unique relationship, that is founded on a powerful combination of love and jealousy between two brothers that are trapped in one body. Compounding matters include the struggle between the brothers to achieve primary adoration by the woman who had enabled the brother to co-exist, and rivalry for the love of a newfound girlfriend.
The story was tight. The editing was great. The score was effective, and the acting was convincing.
Definitely recommend this to those who don't require high action, or fanciness to enjoy a film.

This film was quite challenging. Just what is a person? Can two or three people exist inside the same brain and therefore body? This was a tour de force, requiring him to play two characters in one body. This is a thinking person's film. Don't watch and give it bad reviews because you are expecting young adult fiction. The screenplay and direction could have made some moments more accessible/comprehensible.

I found it horrifying. I am a twin and my sister is violently mentally ill, to the point I am scared of her and in the past have kept where I was living secret to her. I watch stuff about conjoined twins and I thank the universe we aren't. I watch this and it scared me! BUT, the movie isn't horror, just my unique situation causes me to think that way. A lot of people are calling it science fiction, when it is more fantasy, because it doesn't give scientific -ish reasons and explanations, just starts off as this is how it is. It has interesting concepts, and shows some of the same issues we grew up with, like people treating us as interchangeable when we are very different, and how 2 people can have 100% same genetics and upbringing but be mentally and emotionally very different.

This movie is definitely worth a watch. I really enjoyed how creative this film is. I was like wow what if this really happened, so it's very thought provoking. I only wish they would have shown us more of John's perspective besides what he filmed for Jonathan. Like we knew that John became depressed but what was his side of life really like either before or during the time he met Elena would have been nice. Such a good movie, it does help you understand more of the deeper side of a twin connection.

Forget the "brothers" living in the same body. My POV saw this as a case of DID, where, SPOILER ALERT: there used to be three. The character basically sheds "consciousnesses" as he settles on who he really wants to be. It's a weird coping mechanism, that's all. There is not enough sci-fi in it to be referred to as such. What would have made it better is a little more development on the device behind his ear.

Great movie !! While it was very much science fiction it kept me interested all the way until the end. It was different from anything else offered today and had wonderful actors. Highly recommend this movie. Ansel did a terrific job as always in his leading role.

Wow. This is such a gripping movie because of the two persons living in the same body, one during the day; the alternate personality during the night. Elgort is a superb actor. The script writers are highly creative. Definitely worth a viewing with a large bucket of popcorn and soda!