The eighth film by Quentin Tarantino is his most exasperating.

“The Hateful Eight” marks more than the director’s second consecutive western. It confirms his inability to corral his exorbitant talent. Yes, 2012’s “Django Unchained” dazzled until a finale that went on about 20 minutes too long.

With “Eight,” Tarantino once more indulges his primal filmmaking tics without a filter. That turns a brilliant opening sequence into a slog. That pattern repeats over the three-hour running time, one featuring an overture, intermission and 70 mm projection in select theaters.

Kurt Russell plays a bounty hunter dubbed The Hangman who takes pity on a freezing peer (Samuel L. Jackson) and a man (“Justified’s” Walton Goggins) who says he’s a sheriff.

They share a stagecoach one freezing afternoon en route to Red Rock. That’s where The Hangman will trade in his ornery cargo. She’s a foul-mouthed fugitive named Daisy Domergue (Jennifer Jason Leigh), and she’ll fetch a pretty penny.

They finally arrive at Minnie’s Haberdashery, a place to warm their bones while the storm rages on. But they aren’t alone. They meet a quartet of strangers who may not be exactly who they claim.

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Tarantino’s “Inglourious Basterds” served as a Jewish revenge fantasy, giving the tale purpose and energy. He used a similar theme with “Django Unchained,” granting the ghosts of black slaves vengeance against their oppressors.

kurt-russell-hateful-eight-moustache“The Hateful Eight” essentially replaces that “Django” vibe with Jackson’s character, a former Union soldier turned bounty hunter. The actor too often sounds like his 2015 self, regaling his companions with how he degraded a racist in the most humiliating way possible.

The film is set roughly a decade after the Civil War, and the notion that racial tensions remain red hot makes sense. Yet it consumes so much screen time the bigger story suffers.

And then there’s the “N-word,” Tarantino’s preferred obscenity. Did it come up so often during this era?

Having Daisy greet Jackson’s character with a “howdy, N-word!” is the perfect way to establish the era and its ignorance. That’s never enough here, though.

Tarantino is holding all the cards to his murderous mystery. He even supplies some narration to help us connect the dots. Every new reveal feels more like a screenwriter’s gimmick rather than a revelation.

“Hateful Eight” explores the notion of frontier justice vs. real justice, but it’s tackled directly, briefly, and then shoved aside. The script’s ink-black humor also can’t compete with past Tarantino efforts. A running gag about a door that won’t shut isn’t funny the first time, let alone the third. The one sly joke that connects is how everyone seems to have paperwork to defend their nefarious deeds.

DID YOU KNOW: Legendary composer Ennio Morricone supported himself by playing the trumpet while studying at Rome’s Conservatory of Santa Cecilia during his teen years.

The relatively bloodless first half gives way to a gore-filled finale. Rare has the director’s penchant for violence felt so meaningless, so obligatory. Just because you can make a head explode doesn’t mean it should be shown in glorious 70 mm.

Performances are rock solid as usual, particularly Leigh’s irascible Daisy. She takes the kind of pummeling that will outrage Social Justice Warriors. She still gives as good as she gets. Russell, doing his best John Wayne impression, registers as a force of nature. His performance rarely varies in its tone. It’s all shouts and growls.

The tale, separated by chapter title cards in true Tarantino style, is never far from a crackling moment. Italian composer Ennio Morricone may be in his late 80s, but the maestro of too many great western scores to tally can give us goosebumps at will.

Tarantino’s affection for the western is undeniable, and some character exchanges both honor and update the genre. And his casting instincts remain precise, down to giving Bruce Dern another complex role after his bravura turn in “Nebraska.”

Neither the cast nor Morricone’s masterful score can revive “The Hateful Eight” and its lumbering pace. It’s more proof Tarantino’s passions aren’t enough. The grindhouse auteur needs the discipline of the great directors he rigorously honors to deliver on his past promise.