Almost anyone who has worked in an office has felt beaten down by the job at some point, whether it’s by an annoying co-worker, a demanding boss or monotonous daily tasks. It’s enough to make some people crack. So here we have a round-up of some office horror movies that make even the most high-stress workplaces look like a walk in the park.

1. Office Killer

A mousy office worker accidentally kills one of her coworkers, then proceeds to bump off a few others.

2. American Psycho

A wealthy New York City investment banking executive, Patrick Bateman, hides his alternate psychopathic ego from his co-workers and friends as he delves deeper into his violent, hedonistic fantasies.

3. Exam

Eight candidates for a highly desirable corporate job are locked together in an exam room and given a final test with just one seemingly simple question. However, it doesn’t take long for confusion to ensue and tensions to unravel.

4. Office

The investigation following a sales manager brutally killing his entire family leads to a track of mystery and tragedy in an overwhelmed work team at Seoul.

5. Bloodsucking Bastards

A down on his luck cubicle worker and his slacker best friend discover their new boss is a vampire who is turning their coworkers into the un-dead.

6. The Belko Experiment

In a twisted social experiment, eighty Americans are locked in their high-rise corporate office in Bogotá, Colombia, and ordered by an unknown voice coming from the company’s intercom system to participate in a deadly game of kill or be killed.

7. Mayhem

A virus spreads through an office complex causing white collar workers to act out their worst impulses.

8. Corporate Animals

CEO Lucy takes her staff on corporate team building in some underground desert caves in New Mexico. They get stuck there.