Oedipus speaks with Ter about the plague and what caused it. Ter tells of the murder of Laius and that the only way to end the plague is to get rid of the murderer. Ter claims Oedipus is the one that killed Laius.
Oedipus promises his people that he will find the killer of Laius and will exile them. He then begins his desperate search.
After discovering the truth, Oedipus feels as though his world is exploding. When he returns to find Jocasta has taken her own life, Oedipus then takes his sight.