Some time after Agamemnon’s murder, his son Orestes and a friend, Pylades, arrive to his grave after a long exile. Soon, they both hide as Orestes’ sister, Electra, arrives at the tomb with some slaves carrying libations. She sees two locks of hair in the tomb, having been left there by Orestes earlier, prompting him to come out of his hiding place and convince his sister of his identity.
She tells him of Aegisthus and Clytemnestra’s plot to murder Agamemnon and, after a long rant that involves summoning the spirit of their father to help them, Orestes decides to avenge his father by murdering both his mother and her lover.
Orestes and Pylades pretend to be wandering travelers and knock on the door, calling Aegisthus with news of Orestes’ death. Clytemnestra, delighted, goes inside to call Aegisthus, only for him to die when he meets Orestes in private. When she finds out, he threatens to kill her too, in spite of her pleading and remembering him of the fact she raised him. Orestes has troubles deciding if he has to murder her too to avenge her or not, but eventually decides the cause is just and does it. Then she wraps both corpses on Agamemnon’s cloak.
Sadly for Orestes, the cycle of violence doesn’t end there. The murder of his mother plagues him with guilt and soon starts seeing the Erinyes (anthropomorphic versions of vengueance) surrounding him, prompting him to flee in pain.
- Classical Mythology
- Cycle of Revenge: Picks it up from the previous play and leaves it open for conclusion.
- Dreaming of Things to Come: Clytemnestra dream of giving birth to a snake and giving it breast while it also sucks her blood. She understands it soon before her death.
- Downer Ending: Orestes kills both Aegisthus and Clytemnestra, but not only the Cycle of Revenge doesn’t end there, but he also is tormented by Erinyes.
- Evil Matriarch: Clytemnestra.
- Foreshadowing: The characters keep mentioning the Erinyes throughout the play, and they finally appear after Orestes has consummated both murders. Also, another that goes back to the previous tragedy, when Cassandra warns that Orestes will kill Aegisthus.
- Greek Chorus: Slave women.
- Heroic BSOD: Orestes suffers this after his mother’s death.
- I Did What I Had to Do: Orestes convinces himself that he must kill his mother to avenge his father.
- Libation for the Dead: It's actually on the title.
- My God, What Have I Done?: What he feels afterwards.
- Patricide: This is, actually, one of the few examples of matricide on fiction.
- Royally Screwed-Up
- Sacred Hospitality: Orestes and Pylades use this as an excuse to be received when they disguise as travelers.
- Somebody Else's Problem: The chorus’ reaction of Aegisthus’ murder.
- True Companions: Pylades for Orestes.
- Winged Humanoid: The Erinyes.
- You Killed My Father