Morphine is pretty damn much a spectacular piece of adult cinema.

A sort of Requiem for a Dream meets Black Snake Moan, Morphine stars Audrey Hollander as a lost druggie who harbors ambitions of becoming a Nashville singer, but can't untangle herself from the life she leads working at The Sugar Shack, the dive bar/brothel that feeds her addiction.

Telling the story with minimal dialogue, Kimberly Kane dazzles with potent imagery that stimulates both the visual and the libidinous receptors. In a pulse-jolting bang of an opener, Hollander, clutching a guitar, hitchhikes a ride from Faith Leon in a vintage convertible.

Pulling over to the side of the road, the two engage in an electric girl/girl session that involves one of the most daring bits of hardcore footage we've ever witnessed: Leon and Hollander each taking a turn full-on plowing each other's pussies with the barrel of a handgun.

While nothing else thereafter quite hits that apex of outrageousness — or hotness, we would say — it's all very, very remarkable, and the music just plain kicks ass, all gut-churning blues and rockabilly.

Kane performs in two scenes herself — a g/g with Flores and a fourway with Bauer, Daniel and Attack ... during part of which she's got a noose dangling around her neck.

In a highly engaging DVD bonus, Kane relates tales of the real Sugar Shack, where she worked before getting into porn.

Retailing: Firmly establishes Kane, if she wasn't so considered already, as one of the young prodigies of pornography.