In this unexpected cross-generational clash, two generations confront each other in a way we never imagined. When was the last time you had a heartfelt conversation with your twenty-year-old son? As Lung Ying-tai watches her son transition from boyhood to manhood, her eighteen-year-old daughter shuts herself off with headphones, leaving Lung Ying-tai feeling utterly disconnected from her son's inner world. What causes this overwhelming sadness?