Dont believe the 10/10 or the 1/10 reviews. This movie falls almost squarely in the middle. The premise is essentially a PG-13 Saw movie with multiple puzzle rooms for the protagonists to escape (rather than torture devices). There are some really great set pieces, tense moments, and decent acting throughout. However, the film completely falls apart in the last act. Its clearly meant to be setup for a franchise, which completely belittles everything in the first 3/4 of the film and ruins all the goodwill established up to that point. This could have been a really competent thriller if it werent for the money-grabbing shill of an ending. As it stands, this is basically a sub-par "Cube." 5/10 for me; I cant fully recommend it.