It's entirely possible that sending the audience out feeling lousy was intentional

A lot of perfectly good film show their cards early, establish a unique premise and let the audience explore a topic at a leisurely pace, without much in terms of surprise. this film is not one of those films.

Go in cold, and you're likely to emerge with your blood boiling. This has to be seen to be believed.

An old-fashioned movie made with new-fashioned finesse.