The movie illustrates, in painful and beautiful detail, the problems that we humans bring upon ourselves over and over, like addicts. We want to quit, but we can't. Part inherited, part self-inflicted, the story rings true because I think, most of us have a story like that. The thing we want to quit; the way we need to improve, and we try, but we can't seem to make happen. We viewers identify with the poor characters, because we, too, try hard, and fail, and wonder to ourselves lying in bed at night, what is wrong with us?