To the Los Angeles elite, Ford Fairlane is known as "Mr. Rock 'n' Roll Detective." This loudmouthed ladies' man serves an exclusive rock star clientele, who depend on his keen eye and smug discretion. So when a heavy-metal musician dies mid-concert, Fairlane is on the case before the lights come up. But things turn shocking when radio personality Johnny Crunch hires Fairlane to find a missing groupie mere hours before he is electrocuted live on air.

Jennifer is a lovely teen who has been hired to baby-sit the kids of Harry Tucker and his wife, Dolly. The Tuckers go to a party and proceed to get inebriated, with Mr. Tucker fantasizing about his beautiful baby sitter. Meanwhile, Jack, her boyfriend, and Mark, another guy interested in her, decide to spy on Jennifer at the Tucker house, with each young man also fixated on her.