I have just read what I believe to be an analysis of this film by a lyrical Irishman. Lovely to read.
However, a concise analysis of this film is that it is a interweaving of the seven deadly sins with the four types of justice.
Envy, greed, pride, sloth, anger, etc. and justice in the forms of retributive, distributive, blind, and divine.
I could demonstrate three examples of each, one for each of the three protagonists; however, it is much more fun to note them for oneself.
This is an excellent film.
Don't miss it.