It's like The Jungle, but with the horrible mistreatment of human beings instead of meat products*. Guards and doctors and Bridgewater are completely comfortable abusing inmates, because not only do they not see them as human, but they know that no one outside the asylum cares about them either. One scene after another of degradation, indifference, misunderstanding, or something combination of them all. Cogs in a machine, grinding down those at the bottom.
That being said, those mental patients sure can sing pretty nice.
*Yes The Jungle had horrible mistreatment of human beings as well NOT MY POINT