Adapted from an internet famous song of the same name. During the Mid-Autumn Festival, Hu Yang, a graduate student in university, returned to his hometown in the seaside town. He met Nan Xiaoyan, a middle school classmate and now a nurse. The two became lovers. When he returns to his hometown again later, he learns that Nan Xiaoyan is going to marry. Actually Nan Xiaoyan is suffering from an incurable disease and doesn't want to drag Hu Yang down, so she weaved a lie about marrying someone.