The sterile toxicity of the contemporary office environment can be deadly, but nowhere near as noxious as Joe Lynch’s take on corporate hives and their workers. Steven Yeun (“The Walking Dead”) stars as Derek Cho, a corporate attorney who is about to have the worst day of his career. Framed by co-workers to take the fall for a case gone wrong and harangued by a collaterally damaged client named Melanie (Samara Weaving), a perfect storm of chaos foments as the office building goes on lockdown due to the spread of a highly contagious virus. As the infection plows through the office ranks, yielding the masses defenseless against their own wild impulses, Derek knows that he has to survive, but to survive he first has to get justice - in any bloody way possible.