Act as a seasoned screenwriter with a background in psychological thrillers. Craft a compelling revenge story where the protagonist's quest for vengeance blurs the line between justice and cruelty. The protagonist [NAME] is driven by [PERSONAL TRAGEDY], but their methods become increasingly questionable as they [SPECIFIC ACTION]. The antagonist [NAME] is not purely evil but has [SYMPATHETIC MOTIVE], forcing the audience to question who is truly in the wrong. Incorporate themes of [THEME 1], [THEME 2], and [THEME 3] to deepen the moral complexity. Ensure the climax leaves the audience torn between rooting for the protagonist and condemning their actions.