Meg, a music manager, travels from New York to London to manage a boy band, Five Together, and find them a Christmas number one to bolster their flagging career. She finds a song on the internet posted by an ailing thirteen-year-old girl, Nina, and tries to obtain permission to have the song re-recorded by Five Together, but she discovers she has competition from the songwriter, Nina’s uncle Blake. What follows is a romantic comedy about two worlds colliding – with a young woman at the centre who desperately wants her uncle to find love and for his song to hit the number one spot by Christmas Day.

Ben Harper 是一位事业中等成功的家庭男人，也是一名牙医。他正经历中年危机，同时努力应对抚养青少年子女带来的种种怪异现实。他的妻子Susan似乎过得很开心，喜欢自己作为伦敦导游的工作，然而在家里，她在厨房里找路的能力远不如在城市里导游那样出色。

他们的三个孩子——Nick, Janey, and Michael——性格各异，简直像天壤之别。19岁的 Nick正在休学年中，但他的活动范围似乎并不超过沙发和就业中心；Janey聪明伶俐，16岁的她表现得像个25岁的成年人；而12岁的Michael是个非常聪明的电脑宅男，刚刚开始对女孩产生兴趣。