조지 하비 본(George Harvey Bone)은 20세기 초 런던의 작곡가로, 피아노 협주곡을 작곡하느라 스트레스를 받고 있다. 이러한 스트레스로 인해 그는 불협화음을 들을 때마다 정신을 잃는다. 정전이 발생한 후 마을의 다른 구역에서 자신을 발견한 그는 집으로 돌아와 그 구역의 누군가가 살해되었다는 신문을 읽습니다. Scotland Yard의 의사에게 도움을 요청한 그는

George Harvey Bone is a composer in early 20th century London, who is under stress because he is writing a piano concerto. Due to this stress, he gets black outs when ever he hears dissonances. When he finds himself after the black out in a different quarter of the town, he returns home, to read in the paper that somebody in that quarter was murdered. Asking help from a doctor at Scotland Yard he is assured that he has nothing to do with it, but he is advised to cut back in his work and get some relaxation like other, ordinary people. At a cheap musical he meets Netta, a singer, who inspires him for a new motive for his concerto. But Netta discovers that this motive could also be used as a song for her. The song gets sold, and she hangs around George to get more songs out of him. George believes that Netta is in love with him, and gets in an argument with his girlfriend Barbara, the daughter of Lord Henry, who wants the concerto for one of his souares. George has another black out, ...