刘香妹(张艾嘉饰)在杂志社工作,她与一位叫亨利王的同事认识,并有了一个孩子,但亨利是有家室的人,无奈,刘香妹只好离开杂志社,离开了亨利王,为了不使孩子无名无姓,她需要找一个男人与其假结婚,给孩子一个姓,然后随即离婚。经一个朋友介绍,她认识了近三十岁的光棍毕宝亮(李宗盛饰 ),毕宝亮算命三十岁以前不能碰女人,他拒绝了香妹的提议,但经过一段时间的接触,他对香妹有了好感,答应了婚事,这一天香妹打电话回来,却要他与她一起回家见爸妈…Bi Bao-Liang is a 29 year-old man who believes that he will have bad luck if he touches a woman before he turns thirty. Liu Xiang-mei is a beautiful woman who had a love affair with her married boss, and now she is pregnant. In order to give her child a family name, she decides to find a man to have a one-year marriage contract. Bi Bao-Liang is the perfect man she is looking for because he is afraid of women. However, their marriage does not follow what they've planned...