A clever twist to the zombie format that makes people's lack of inhibition the catalyst for blood-lust. It gets off to a slow start by setting up the office politics, but once it goes into overdrive, it's a pretty relentless slaughter-fest. It is a little one dimensional, and probably more of a cathartic experience for anyone who works in the corporate environment, which I personally don't. Cool to see how, for whatever reason, Samara Weaving has been type cast with these kinds of bad-ass roles and has become quite a dependable face as I've at least somewhat enjoyed everything I've seen her in.