I like the slow pace of the movie. Nothing happens for ages... And there's a lot of theatrical pathos. Nonetheless, what I like very much, is a kind of budget-wise method applied in the movie. Most of it happens in the open meadows - I suppose in some old abandoned army area somewhere in Czechoslovakia. Nothing much is shown, we can just guess.
I have to admit, the film is really interesting. It is one of those few sci-fi films which have been made within famous Czechoslovakian film industry. There are few more rare and interesting titles which I recommend to see. Try "Upír z Ferratu" = Vampire from Ferrat (funny quotation of the classical film horror icon "Nosferatu") - film from 80' from a Czech director Juraj Herz. Kind of weird biotech sport car movie about a racing car which sucks the driver's blood... Reminds David Cronenberg.
to hall 900: I just wanna mention, the old woman Martha, you like so much, is not called Ondřej Jariabek - he is the old man, but she is Jitka Hořejí.