It's an interesting film to watch, it keeps you guessing all the way.

But when the answers were given I found myself indeed shocked, i give them movie that. But it's just so...stupid. I mean they it's jut bonkers.

Without spoiling too much I can just say that premise is simply dumb. The people who though about the 'science' in the movie to make it interesting completely gave up on logic. I supposed that's the norm or science fiction, but in this case it's pure fiction without a single ounce o scientific background or even the simplest amonut of logic in it. So so dumb.