The Belko Experiment (2005)
A normal day on the job becomes a battle royale after a large group of office employees become locked inside their office building as guinea pigs in a test of how far a human being will go become the last person standing.
Why It’s A Good Option for Saw Fans: If the most recently mentioned film, Circle, would prove not bloody enough for you, The Belko Experiment, an intense parable from the mind of James Gunn that examines the dangerous primal instincts the corporate lifestyle can imbue, should most definitely do the trick.
Rent the Belko Experiment on Amazon here.