A fantastic watch, will watch again, and can recommend.
This is a survivalist movie, heavy with philosophy of morality. A lot of the time when I get to say anything close to that, I get to say, "but there is humor too", there is not: not traditional humor anyways.
This is a dark movie filled with metaphor and cruel reality. Now while I am usually offended by reality encroaching on my escapism, that is normally when I'm trying to watch dirt humor. When to take a concept like this, the relation to reality only strengthens the movie.
"Those above, and those below" is something to think about, and if that intrigues you or you're already onboard for a philosophical discussion of anti-hierarchical class society structure, or intrigue by the idea that it doesn't matter who or when someone is in the class structure: it defeats the society just by being.
The production value is minimal but sufficient, and I think that is by design. It does live in the land of bad dubs, but not enough for me to fault it.
Give this a shot: you might be surprised at yourself or your company.