Over the course of a single weekend, two teenage girls are found dead in an affluent Chicago suburb. As the community responds to the deaths, Abby Rosso, a high school counselor at the girls' school, begins to question whether her son may have had undisclosed connections to them. Her concerns are shaped by her professional experience and by personal history, including a family member's past criminal conviction. As Abby investigates the circumstances surrounding the deaths, she reflects on patterns of behavior, memory, and responsibility, while confronting uncertainties about her own perceptions and decisions as a parent. What Boys Learn examines family dynamics, community response to violence, and the influence of gender and upbringing through a psychological lens.