It involves elements of the thriller and the chase but is essentially a character study, an examination of how its people meet and deal with a man so bad, cruel and unfeeling that there is simply no comprehending him. Chigurh is so evil, he is almost funny sometimes. "He has his principles," says the bounty hunter, who has knowledge of him.
Consider another scene in which the dialogue is as good as any you will hear this year. Chigurh enters a rundown gas station in the middle of wilderness and begins to play a word game with the old man (Gene Jones) behind the cash register, who becomes very nervous. It is clear they are talking about whether Chigurh will kill him. Chigurh has by no means made up his mind. Without explaining why, he asks the man to call the flip of a coin. Listen to what they say, how they say it, how they imply the stakes. Listen to their timing. You want to applaud the writing, which comes from the Coen brothers, out of McCarthy.
This movie is a masterful evocation of time, place, character, moral choices, immoral certainties, human nature and fate. It is also, in the photography by Roger Deakins, the editing by the Coens and the music by Carter Burwell, startlingly beautiful, stark and lonely.