Former classmates Alexandra and Alexis may share the same name, but they couldn’t be more different. Alexandra is beautiful, intelligent, rich, and completely insufferable. Self-centered and patronizing, she’s an expert in quick put-downs, nasty name-calling, and brokering gossip into profit. Alexis is a simple-minded, pure-hearted, and hard-working gal who is constantly bullied by her future sister-in-law’s family with whom she stays. Crossing paths again by chance, the two girls don’t want anything to do with each other – until a freak accident causes them to switch bodies!

Tony（方力申 饰）是个热爱音乐的富家子，满心希望想加入乐团，可是乐团主音却十分鄙视Tony。Tony经常光顾的唱片店内，有一位曾经很寂寞的女店员Kristy（吴雨霏 饰），与失业的父亲（林雪 饰）共同生活。她身边有一个共同成长的叫阿奇（侧田 饰）的男孩，阿奇学业奇差，在母亲（恬妞 饰）的改衣店里工作。母亲希望阿奇可以成为一个有自信的人，但他唯一能扣动人心弦的是他的音乐才华。当Kristy遇上Tony后，便一直暗恋着Tony。但其实阿奇也是默默爱着Kristy……