Circle (2015) online

In a massive, mysterious chamber, fifty strangers awaken to find themselves trapped with no memory of how they got there. Organized in an inward-facing circle and unable to move, they quickly learn that every two minutes, one of them must die... executed by a strange device in the center of the room. At first, the attacks seem random, but soon the strangers realize that they, as a group, have the power to decide who will be the next to be killed. A vote. A chance to control the machine. But how can they choose who deserves to die? And what happens when there's only one person left? Circle is a film about people, how they value one another, and what they do under the worst possible circumstances. A film about what makes us human - who we are, what we believe, and ultimately, the lengths we will go to save ourselves.