Hell hath no fury like a psycho with bad hair

No Country for Old Men, adapted by Joel and Ethan Coen from Cormac McCarthy's novel, is bleak, scary and relentlessly violent. At its center is a figure of evil so calm, so extreme, so implacable that to hear his voice is to feel the temperature in the theater drop.

But while that chilly sensation is a sign of terror, it may equally be a symptom of delight. The specter of Anton Chigurh (Javier Bardem), a deadpan sociopath with a funny haircut, will feed many a nightmare, but the most lasting impression left by this film is likely to be the deep satisfaction that comes from witnessing the nearly perfect execution of a difficult task. No Country for Old Men is purgatory for the squeamish and the easily spooked. For formalists - those moviegoers sent into raptures by tight editing, nimble camera work and faultless sound design - it's pure heaven.

So before I go any further, allow me my moment of bliss at the sheer brilliance of the Coens' technique. And it is mostly theirs. The editor, Roderick Jaynes, is their long-standing pseudonym. Cinematographer Roger Deakins and composer Carter Burwell are collaborators of such long standing that they surely count as part of the non-biological Coen fraternity. At their best, and for that matter at their less than best, Joel and Ethan Coen, who share writing and directing credit here, combine virtuosic dexterity with mischievous high spirits, as if they were playing Franz Liszt's most treacherous compositions on dueling banjos. Sometimes their appetite for pastiche overwhelms their more sober storytelling instincts, so it is something of a relief to find nothing especially showy or gimmicky in No Country. In the Coen canon it belongs with Blood Simple, Miller's Crossing and Fargo as a densely woven crime story made more effective by a certain controlled stylistic perversity.

The script follows McCarthy's novel almost scene for scene, and what the camera discloses is pretty much what the book describes: a parched, empty landscape; pickup trucks and taciturn men; and lots of killing. But the pacing, the mood and the attention to detail are breathtaking, sometimes literally.

In one scene a man sits in a dark hotel room as his pursuer walks down the corridor outside. You hear the creak of floorboards and the beeping of a transponder, and see the shadows of the hunter's feet in the sliver of light under the door. The footsteps move away, and the next sound is the faint squeak of the light bulb in the hall being unscrewed. The silence and the slowness awaken your senses and quiet your breathing, as by the simplest cinematic means - Look! Listen! Hush! - your attention is completely and ecstatically absorbed. You won't believe what happens next, even though you know it's coming.

By the time this moment arrives, though, you have already been pulled into a seamlessly imagined and self-sufficient reality. The Coens have always used familiar elements of American pop culture and features of particular American landscapes to create elaborate and hermetic worlds. McCarthy, especially in the western phase of his career, has frequently done the same. The surprise of No Country for Old Men, the first literary adaptation these filmmakers have attempted, is how well matched their methods turn out to be with the novelist's.

McCarthy's book, for all its usual high-literary trappings (many philosophical digressions, no quotation marks), is one of his pulpier efforts, as well as one of his funniest. The Coens, seizing on the novel's genre elements, lower the metaphysical temperature and amplify the material's dark, rueful humor. It helps that the three lead actors - Tommy Lee Jones and Josh Brolin along with Bardem - are adept at displaying their natural wit even when their characters find themselves in serious trouble.