Jess Wirth lives a dreary life. He spends most of his time crammed inside a cubicle, toiling as a network engineer and stewing over the details of his ugly divorce. But when he finds his co-worker dead in the basement of their office, Jess’s life takes a surprising—and unpleasant—turn. The police quickly declare the death a suicide, but Jess isn’t so sure. Not long after he begins digging into the victim’s work, another co-worker turns up dead, convincing him once and for all that something sinister is brewing behind the cubicle walls. His investigation leads him to a mysterious woman name Leah, who pushes him to entrust her with the information he’s collected about his dead colleagues.