Electra recounts the murders of Clytemnestra and Aegisthus by Clytemnestra"s son Orestes, to avenge their murder of his father Agamemnon, commander of the Greeks at Troy, upon his return home. Sophocles" version is presented from the viewpoint of Electra, Orestes" sister, who laments her father, bears witness to her mother"s crime, and for years endures her mother"s scorn. When Orestes arrives at last, her mood shifts from grief to joy as Orestes carries out the bloody vengeance. Despite her overwhelming passion for just revenge, Electra admits that her own actions are shameful.