

When Oedipus arrived in Thebes and saved the city, he was made king and married the widowed queen, Jocasta, sister of Creon.) Now Creon returns with the oracle's news: for the plague to be lifted from the city, the murderer of Laius must be discovered and punished. (A little background: before Oedipus arrived in Thebes, the previous king, Laius, was murdered under mysterious circumstances and the murderer was never found.

Oedipus has already sent his brother-in-law, Creon, to the oracle of the god Apollo to find out what can be done.

A group of priests comes to the royal palace to ask for help from Oedipus, their king who once saved them from the tyranny of the terrible Sphinx. Citizens are dying from plague, crops fail, women are dying in childbirth and their babies are stillborn. At the start of the play, the city of Thebes is suffering terribly.
