The movie's plot is your run-of-the-mill "And Then There Were None" (1945) story line: Put some strangers in a box and see who will survive; not particularly good, but not bad either. The dialogue and acting is amateurish, i. e. a valiant effort by non-professionals, but still a constant reminder that you are watching a movie. The worst part is the acoustic and visual quality: The movie was filmed with video cameras with no external microphones and only "natural" lighting, and it looks and sounds as one would imagine that to be.
But for the purported budget of DEM 45,000 the product, a 90-minute feature film with a cast of half a dozen people filmed on location, is remarkable. I find it quite surprising that neither the director nor the producer seem to have to pursued this career much further.
However, my main motivation for watching the movie was the "Dienststelle Marienthal", the famous (and now decommissioned) "Ausweichsitz der Verfassungsorgane des Bundes im Krisen- und Verteidigungsfall zur Wahrung von deren Funktionstüchtigkeit". It is what gives the movie a very special flavour: Not filmed on some sound stage or in a warehouse, but in the actual place where in the case of a nuclear war 3000 people would have tried to govern the melted remains of Germany. In the movie it only plays a minor part and neither its size nor its mission are explored; but as "Marienthal: State of Emergency" is only one of three movies filmed there it is certainly worth to watch if one can ignore its quality issues.