Gun salesman John Doe gets home to find his 10-year-old son Johnny already back from school and playing on the living room floor. As they talk, Johnny slowly comes to the realization that something "sad" has happened, but he can't remember what it is. Johnny tells John about Billy Fireman, a boy who was shot to death at school the week before. Throughout the telling of the story, Johnny continues to be bothered by his repressed memory. As he slowly...