Oedipus, King of Thebes, is confronted by his brother-in-law, Creon. Creon says that the former king, Lauis, was murdered.
Teiresias, a blind priest, explains the prophecy that Oedipus will kill his father and marry his mother. He tells Oedipus that he is responsible for the death of Lauis, who is his father. Oedipus is angry.
Oedipus explains to Jocasta, his wife and mother, that he had killed someone on the crossroads because they attacked him. He thinks that the prophecy is now false.
A messenger comes and tells Oedipus that his adoptive father, King Polybus, has died. He tells Oedipus that he is not his real son. Oedipus doesn't believe it and the messenger tells him that he found him as a baby on a hill side and gave him to another herdsman. Oedipus summons the herdsman to question him.
The herdsman explains that the baby he and the messenger had found was the son of Lauis. They gave him to King Polybus to take care of. Oedipus feels guilt now for knowing he had killed his father and married his mother.
Oedipus finds that Jocasta has killed herself. He decides to stab his own eyes out. He asks Creon to take him away and leave him alone on the hill he was abandoned on.