戴安（维吉妮·艾菲拉 Virginie Efira 饰）刚刚结束了一段失败的婚姻，虽然感情不顺，但戴安拥有美丽的外貌，幽默的个性，开朗的性格，所有人都相信，她一定能够遇到另一段美好的爱情，对此，戴安也做足了心里建设，自信满满。 　　某日，戴安稀里糊涂的弄丢了手机，一位名叫亚历山大（让·杜雅尔丹 Jean Dujardin 饰）的男子见到了她的手机，联系她想要将手机归还。在电话里温文尔雅非常绅士的亚历山大一下子就吸引了戴安的注意，她觉得这整件事情就仿佛一个美好爱情故事的完美开端。然而，当戴安亲眼见到亚历山大时，才发现对方的身高竟然比自己矮一大截，戴安能否接受这身高上的巨大差距呢？Diane is a well-known lawyer, divorced for three years. She loses her mobile telephone and receives a call from the person who finds it. That person is Alexandre, a charming man and the perfect gentleman. They make a connection over the phone and agree to meet up the following day. But when Alexandre arrives, there's a surprise in store when Diane discovers he is only 4' 6" tall. From that moment on, Diane tries to overcome the prejudices of society and her own fears to experience the best time of her life...