故事发生在1921年,玛格丽特(凯瑟琳·弗洛 饰)是一位热爱音乐却唱歌走音的女人,她拥有着这一座邻近巴黎的大城堡,也有着一小群观众在城堡里听她歌唱,可这些伪善的观众却在玛格丽特背后偷偷嘲笑她。一位年轻的记者写了一篇关于她表演的文章,玛格丽特深信自己的音乐才能,想要做一次公共演出。根据美国女高音Florence Foster Jenkins的故事改编而成,她因为糟糕的歌唱技巧而在上世纪30-40年代走红。Paris, 1920s. Marguerite Dumont is a wealthy woman, lover of the music and the opera. She loves to sing for her friends, although she's not a good singer. Both her friends and her husband have kept her fantasy. The problem begins when she decides to perform in front of a real audience.