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.
*don't waste your time*. Most of the movie happens in a sort of multi-floor prison where the top levels can control the food that goes to the bottom floors. This created a sort of class structure where top-levelers had pleasure on denying food to the bottom levels, although the floors were sorted periodically. The protagonist started to question this structure and tried to change it. Although starting well, the movie lost its track trying to be too much symbolic and enigmatic. The ending was very disappointing leaving too many loose ends that should have been closed.