End of Days, Inc. (2015)

It's the last day of business before Godfrey Global Inventory shuts down for good, and the enigmatic Mr. Godfrey and his officious sister Esther invite the company's downtrodden staff to a farewell party where they are to receive their final paycheques. Instead, they are bribed into working one last night, wherein they discover that processing the last of their "inventory" will lead to cataclysmic consequences.