A terrified group of office workers fend off an army of the living dead after an experiment designed to transform unhappy employees into content, productive laborers instead turns them into flesh-eating zombies. For the last three years, software engineer Ben Lau has been working around the clock to develop the technology that would eliminate workplace hostility. But when the final experiment goes terribly awry, Ben's boss, Life Corp CEO Sir John Chris, recruits a pair of consultants who somehow manage to exacerbate the problem rather than solving it. As a result, the entire building is overrun by zombies, and placed on lockdown. With time running out and precious few places to hide, Ben, his colleague Raj, and their project manager Liz seek the help of the well-coifed marketing department and their charismatic CEO in finding a cure for the zombie plague, and ensuring that business goes on as usual once the slight setback has been rectified.