From his hideout beneath a 19th century Paris opera house, the brooding Phantom (Gerard Butler) schemes to get closer to vocalist Christine Daae (Emmy Rossum). The Phantom, wearing a mask to hide a congenital disfigurement, strong-arms management into giving the budding starlet key roles, but Christine instead falls for arts benefactor Raoul (Patrick Wilson). Terrified at the notion of her absence, the Phantom enacts a plan to keep Christine by his side, while Raoul tries to foil the scheme.

Elizabeth Barnard Medina (Barbara Steele) has died in the prime of life, and her brother, Francis (John Kerr), wants to know why. Elizabeth's husband, Nicholas (Vincent Price), and her doctor offer differing explanations, but when Francis learns that Nicholas' mother may have been buried alive, he begins to wonder if his sister met the same fate. And when he comes to believe that Elizabeth's spirit wanders about Nicholas' castle, Francis investigates -- and is stunned by what he finds.