While the US is currently enjoying the corporate carnage in Greg McLean’s The Belko Experiment, UK audiences will have to wait until the film’s theatrical release on April 21. To tide you British folk over, though, here’s a short and sharp trailer that gives a hint of the madness to come.

Written by ex-Troma contributor James Gunn (Guardians of the Galaxy, Slither), The Belko Experiment (review) stars John Gallagher, Jr. (10 Cloverfield Lane), Tony Goldwyn (“Scandal”), Adria Arjona (“True Detective”), John C. McGinley (“Stan Against Evil”, “Scrubs”), Melonie Diaz (Fruitvale Station), Josh Brener (“Silicon Valley”) and Michael Rooker (Guardians of the Galaxy).

Synopsis:

When office workers arrive for work at Belko Industries’ isolated high-rise campus outside Bogotá, Colombia, the morning starts much like any other. Mike Pelk (John Gallagher, Jr.) smokes weed in the bathroom and flirts with his beautiful officemate Leandra (Adria Arjona) while new employee Dany Wilkins (Melonie Diaz) settles in for her first day on the job.

Everything changes when an anonymous voice comes through the intercom speakers ordering employees to kill two of their colleagues within 30 minutes. Many of the 80 employees assume the order is a sick joke, even when steel-plated doors snap shut sealing off all windows and exits. When they fail to comply before the half hour is up, the heads of four randomly chosen office workers explode. Panic reaches a fever pitch when the disembodied voice issues his next command: thirty people must be killed within the next two hours or 60 people will die.

Belko COO Barry Norris (Tony Goldwyn), a former Special Forces operative, commandeers a vault filled with guns, assembles an ad-hoc death squad and begins executing elderly and childless employees. In the ensuing melee, ordinary office workers including stoner Marty (Sean Gunn), nerdy Keith (Josh Brener), creepy Wendell (John C. McGinley) and maintenance guy Bud (Michael Rooker) reveal their true colors.