"Doubt: A Parable" is a play by John Patrick Shanley that explores themes of faith, morality, and the complexities of human relationships. Set in a Catholic school in the 1960s, the story revolves around Sister Aloysius, a strict principal who suspects Father Flynn, a charismatic priest, of inappropriate behavior with a student. The tension between certainty and uncertainty drives the narrative, as Sister Aloysius seeks to uncover the truth. The play raises questions about the nature of doubt and the impact of personal beliefs on judgment. As Sister Aloysius confronts Father Flynn, the audience is left to ponder the implications of her suspicions and the consequences of her actions. The ambiguous ending invites reflection on the balance between faith and skepticism.