For years, he has neglected his family in Hong Kong to tend his business in Mainland China. Back in Hong Kong after his father's death, the man discovers his son's childhood diary. As he reads about his son's life with his father, the man realizes that he has let his son's childhood pass by him. Filled with regret for both his father and his son, the man decides to make an effort to mend his relationship with his son. However, is it already too little, too late?