感恩節的夜晚，一群玩具店的員工心不甘情不願地為了將在午夜開始的購物狂歡節「黑色星期五」加班。與此同時，一種外星寄生蟲藉著流星來到地球上，這些員工們很快發現，他們面對的瘋狂顧客通通變成了兇殘的可怕生物…。

A grieving father grapples with the seedy, manipulative world of high stakes debt collection while struggling to shed the tragedies of his past. He find's himself pitted against his best friend with troubling consequences.