It's the end of World War II. A group of Russian soldiers, being documented by a cameraman, come across a secret Nazi lab. At first it's some weird looking contraptions--then they find a body that's all twisted and melded with metal. It disembowels one of them and they kill it. But there are a lot more metal/human monsters--in fact, there's an entire assembly line of the re-animated dead. It's not bad enough when the Russians are killed-- each casualty shows up later as one of the creatures.
I was a bit ambivalent of how the movie was presented--as all being captured on film with good sound by one person (when that technology didn't exist back then)--but it's forgivable and after about twenty-minutes you don't question it anymore.
This is one intense, unrelenting horror movie. I haven't seen anything like it since the original Re-Animator or Peter Jackson's Dead Alive. One of the best horror flicks of 2013.