阿莱克斯(休•格兰特 饰)是一个八十年代过气流行乐歌手，近年好不容易逐渐获得更多的演出机会，更得到流行天后Cora邀请他写歌并合唱该曲。但此刻阿莱克斯碰到了创作瓶颈，多年没有作曲之余，而且从来没有过作词的经验，现在却要在几天内作出一首畅销的流行曲。 　　就在阿莱克斯十分烦恼时，他遇到了苏菲（德鲁•巴里摩尔 饰），这个美丽的女孩精通运用文字，随口唱出的歌词让阿莱克斯十分满意，多次邀请苏菲才答应与阿莱克斯一起合作。但苏菲一直困在前一段失败的感情中，她害怕承诺。当她与阿莱克斯的感情逐渐升温的时，两人却要一起面对分歧……Cheery Alex Fletcher lives comfortably in Manhattan off the residuals from his 80's pop success and reprising his hits at school reunions, theme parks, and state fairs. But those gigs are declining, so he jumps at the chance to write a song and record it with reigning teen idol Cora Corman. Trouble is, he's good at melodies but needs a lyricist and has less than a week to finish. Enter Sophie Fisher, subbing for a friend who waters Alex's plants; she's a pretty good poet, quick witted, and could do it, if she'd agree. But there's some sort of shadow over her head that Alex may not be able to charm his way past. And what if they do get a song written, what then?