Hammer Films presents the most shocking version ever filmed of the classic The Phantom of the Opera. Mysterious mishaps bedevil a London opera house, but when tragedy strikes during an opening night performance, it becomes clear that these "accidents" are the deliberate work of a deranged madman - the Phantom (Herbert Lom). When Christine (Heather Sears), the young star of a new musical is contacted by the shadowy specter, her producer (Edward De Souza) investigates, tracking the ghostly Phantom to his secret underground lair. Disfigured and nearly destroyed, he now demands his hellish revenge. Christine, his new star, is the Phantom's one weakness, and he pays the ultimate price to keep his love alive.