Bill Genovese's decade-long quest uncovers the truth about his sister Kitty's death, a mythic event that became a symbol of urban apathy. He begins by questioning the original story, which reported 38 witnesses to her stabbing. The investigation affects Bill deeply, leading him to volunteer for Vietnam and lose both legs. As he seeks the truth, he confronts witnesses, the killer, and his own family's silence, ultimately exploring themes of bearing witness, loss, and forgiveness.