The first movie based on Agamemnon, the first of Aeschylus’ tragic play trilogy, tells of Agamemnon, King of Argos, who returns home victorious from the Trojan War. However, he and his new slave, Trojan princess Cassandra, are murdered by his wife Clytemnestra, as an act of revenge for their daughter, Iphigenia, whom Agamemnon had previously sacrificed to the goddess Artemis to ensure that his fleet could sail safely to Troy. She is then joined by her lover Aegisthus, Agamemnon's cousin, whose brothers had been cooked and served to Aegisthus' father Thyestes by Agamemnon's father Atreus years before. Having succeeded in their revenge plot, Clytemnestra and Aegisthus seize control of Argos.
