Climax: Things start to click in the mind of Oedipus as he connects parts of stories to information from Jocasta. He remembers he was told he was adopted as a small child. Now he is curious and seeks more information.
Falling Action: Oedipus confirms his fear as the Shepard and Messanger give him the information that he was in fact adopted because of the abandonment that Laius and Jocasta forced.
Conclusion: Jocasta finally realizes that Oedipus is her son and that she has had children with her own son and hangs herself. Oedipus also eventually realizes this fact, gauges his eyes out and is exiled from Thebes.