Jim is a speed-freak bike messenger whose devotion to her drug habit rivals the intensity of her adoration for Ally, her brilliant stripper girlfriend. When she's forced to choose between drugs and the girl, time and again she succumbs to her addiction-but somehow she's still unable to attain the ultimate high she seeks. After losing her messenger job, Jim works first as a downwardly spiraling drug dealer, then as a roadie for a touring all-girl punk band, and engages in short-lived halfhearted romances while pining for Ally. She winds up staying in a squat house in New York City when the roadie gig ends, and finally begins cleaning up her act. But upon eventually returning home to San Francisco, Jim finds that things have changed in a way she can't reconcile. It's only then she realizes the ultimate rush can't be found in sex, drugs, violence, or even Ally-the source of her rapture is something else entirely.