Zhi Xiong lives alone with his grandfather. One day, a school assignment leads him to find out more about his mother which inevitably opens up the wounds of a strained relationship, the consequence of a father's aspirations for his daughter clashing with her pursual of a dream.

志雄從小與阿公同住。一天，當學校要求他寫出一份關於媽媽的作業時，也揭開了他們祖孫倆多年的傷疤，一個父親對女兒，孩子對於媽媽的思念。