对前途充满了憧憬与期望的陆涛（佟大为 饰）刚刚大学毕业，女友米莱（王络丹 饰）带来好友夏琳（马伊俐 饰）一起庆祝。没想到陆涛和夏琳一见钟情，爱情火花燃烧得浓烈的二人不顾一切地相爱了。担心伤害身边的人，他们俩没有公开爱情，但被早已疑心的米莱撞破。伤心的米莱远走他乡。身处热恋中的陆涛和夏琳也希望好友能感染爱情的魔力，介绍向南和杨晓芸（李小璐 饰）认识。没想到这两人来了个闪电结婚，让周围人措手不及。面对事业，刚刚毕业的他们不是碰了一头灰，就是认识到理想与现实之间的落差。这个时候，陆涛的亲生父亲回来了…… （英语）Lu Tao (acted by Tong Dawei) has just graduated from college and celebrates his graduation with his girlfriend Mi Lai (acted by Wang Loudan) and Mi Lai's friend Xia Lin (acted by Ma Yili). Lu Tao and Xia Lin, who just meet for the first time, fall in love unexpectedly. Not wanting to hurt those around them, the two decide to hide their relationship, which is soon found out by Mi Lai. The grieving Mi Lai leaves for another city. Lu Tao and Xia Lin, who are eager to help their friends taste the magic of love, introduce Xiang Nan to Yang Xiaoyun (acted by Li Xiaolu). The two soon surprise everyone with a flash marriage. But things are not going smoothly with their careers. The fresh graduates run into a wall now and then, realizing the gap between their ideals and reality. At this time, Lu Tao's biological father returns...