The Belko Experiment (trailer)

The Belko Experiment is a 2016 American horror movie directed by Greg ‘Wolf Creek’ McLean. In a secret deadly social experiment, a firm of US citizens are locked in their corporate office block and instructed by a mysterious voice over their intercom system to slaughter each other or be executed. Think the Hunger Games with a homicidal Ricky Gervais given free range to murder rather than dad-dance.