The corrupt Lord Ambrose D'Arcy swipes the life's job of the poor music Teacher Petry. In an attempt to stop the printing of music with D'Arcy's name on it, Petry breaks into the printing office as well as unintentionally starts a fire, leaving him badly disfigured. Years later, Petry go back to terrify a London opera house that is about to carry out among his stolen operas.