"Forgive Me, Leonard Peacock" is a young adult novel by Matthew Quick that follows the story of a troubled teenager named Leonard Peacock. On his eighteenth birthday, Leonard plans to say goodbye to his life by committing a tragic act. Throughout the day, he reflects on his relationships and the events that have led him to this moment, seeking understanding and connection. The narrative explores themes of loneliness, mental health, and the search for meaning. As Leonard interacts with key figures in his life, including his former friend Asher and a compassionate teacher, he grapples with his feelings of despair and the possibility of redemption.