Eugene O’Neill’s updated version of the Orestaia. In New England, after the American Civil War, a war-weary Agamem–er, Ezra Mannon comes home to his unhappy wife (Christine) and loving daughter (Lavinia). But Lavinia’s ex-suitor, Adam Brant, has become Christine’s lover, and together Adam and Christine plot to poison Ezra. When they succeed, Lavinia turns to her brother Orin t…