Many years after the murder of Agamemnon by his wife Clytemnestra, their son Orestes, along with his cousin Pylades, returns to Argos and reunites with his sister Electra. Together they plot to exact revenge on their mother Clytemnestra and her lover Aegisthus, the current king of Argos, for the murder of their father.
Orestes arrives at the palace of Clytemnestra and Aegisthus disguised as a stranger bearing news that Orestes is dead. Upon being allowed into the palace, Orestes first kills Aegisthus, and then Clytemnestra. However, he then finds himself the target of the wrath of the Furies, the goddesses of vengeance, and is forced to flee from the palace.
