In her debut film, director Qiong Wang builds a riveting portrait of her family reckoning with the lasting impact of China's one-child policy. After giving birth to two daughters, Qiong's parents were desperate for a boy. When they learned that they were pregnant with a third daughter, the couple embarked on a path that would affect their family for generations to come. Filming for more than seven years, Ms. Wang courageously investigates her family's...