This movie is a fable of our life - we eventually - every single of us - few exceptions happen, arrive to unknown place and get trapped there to never - most of us break free. And the rest of our life we spend watching without any disbelief at idiocy and absurd around us and abandoning any hope to take a train to Moscow. This movie is Checkov's Cherry Orchard retold in today's words with memory of absurd history of XX cent. So sweet for a Western heart explanation of Soviet system as "oppressive communist regime" has nothing to do with reality - oppression was not coming from KGB, it was in the hopeless idiotism, status quo, absolute stagnation. Sci Fi experiment, the one word which describes the life in USSR is "boring". We know that without sensory inputs, deprived of them our brain starts to generate illusions. This is what you see in this "movie", I put it in commas because for me it is not a fiction movie, it is a documentary.
