I just thought of something. This could be like the movie Cube. People are trapped in a small room. They see a door very high up, impossible to reach. Suddenly the ceiling starts to drop, piece by piece, and they have to scramble on top of them before they are crushed. But as soon as the floor fills up, the bottom row vanishes and they have to continue climbing, hoping the blocks fall in just the right way so that they don't get trapped and crushed, or that the bottom row isn't all the way filled in so that they can reach the door at the top since otherwise they'll just stay at the same height indefinitely. Then, like Cube, they figure out there are ways to manipulate the orientations of the falling piece of the ceiling, the speed at which they fall, but then they realize that in order to do that, it has to become a competition, i.e. if they want to have control of the situation, they have to do it in such a way that one of them will have to 'lose' a strategy battle and be crushed. But unfortunately, the only way they can guarantee they'll reach a height that will let them escape is to control the blocks manually rather than let them continue to fall randomly, thus they are forced to do it in a deadly competition rather than being completely cooperative the entire time.
How sick would that be? And since Cube is also a trilogy, this totally makes sense.