同为媒体人的马勇(陈坤 饰)和俞晓红(袁泉 饰)是一对新潮时尚的小夫妻,不过年轻人个性自我,争强好胜,婚后口角不断,最终闹到离婚的地步。在此之后,马勇结识了性感美丽的女孩赵慧(吴天瑜 饰),二人情投意和,琴瑟和鸣,但是离婚后却仍然有很多家当放在家中的晓红却是个无法忽视的大麻烦,晓红时常在二人情到深处之时不合时宜地闯进来,令马勇和赵慧尴尬不已。马勇看出单身的晓红并不快乐,于是张罗着将自己的好哥们张琪(陆毅 饰)介绍给前妻,谁知却闹出更多笑话,两对情侣的恋情也朝着不可预测的方向发展…… 本片根据李唯的同名小说改编。Divorcé Ma Yong (Chen Kun) who runs a wedding event planning company falls hard for his new girlfriend Zhao Hui (Debbie Goh). But his ex-wife Xiaohong's (Yuan Quan) annoying insistence on dropping in on them without notice takes a toll on their budding romance. Just when Ma Yong decides to introduce a new love interest to his ex-wife, his best friend Zhang Qi (Lu Yi) shows up. Ma Yong makes every effort to bring his ex-wife and his best friend together. But when his plan actually succeeds and Xiaohong and Zhang Qi hire him as their wedding planner, Ma Yong experiences a sudden change of mind...