Genre movies from or rather in Germany are rare. So it's always nice to see an effort in general and when it's a decent one like this here, it's even better. We may have seen a lot of the things happening here in other movies, but that doesn't change the fact that this was made with a great effort and a lot of dedication.
The acting is decent too, the suspense is killing the viewer and there are a couple of nice twists along the way. It all works out nicely (or does it?) when it comes to the story part. It is predictable to a certain degree too, but that cannot be considered a flaw, especially because (almost) everything else is working.
Review by kosmasp from the Internet Movie Database.