Disgruntled Employee (2012)

Nobody loves him, and nobody sees that lonely janitor Steve only means well. And as if working for peanuts in a female-dominated company weren't enough, one day, spiteful manager Claire shows Steve the door. However, now that a life of unemployment and uncertainty awaits Steve, no one is safe--enemies and friends alike. Now Steve is hell-bent on making his heartless colleagues eat their words. But first, he will make them suffer in the most debasing and depraved ways possible. Can the pitiless co-workers escape the wrath of the disgruntled employee?