Dr. Frank N. Stein, the crusty great-grandson of the original monster-maker, has developed a magic clone box for "a brighter tomorrow." But his pretty daughter, Julie, who possesses one hair from the head of the King, wants an Elvis clone! Unfortunately, the guy with blue suede shoes and guitar who pops out can't sing a note. And it doesn't get any better when he and the doctor go back into the clone box and their personalities are switched. Add in an ambitious young TV reporter; a psychoanalyst; a crusty housekeeper; a patient with multiple personalities, and other folks all bent on pursuing their own secret agenda, Elvis-wise, and you have a guaranteed audience pleaser.