The "Orestiada" is a trilogy of ancient Greek tragedies written by the playwright Aeschylus. It consists of three plays: Agamemnon, The Libation Bearers, and The Eumenides. The story revolves around the themes of revenge, justice, and the consequences of one's actions, focusing on the House of Atreus. The trilogy follows the character Orestes, who seeks to avenge his father, Agamemnon, after his murder by his mother, Clytemnestra. The plays explore the moral dilemmas faced by Orestes and the transformation of justice from personal vengeance to a more organized legal system, symbolized by the establishment of the Areopagus court.