Sophocles

Oedipus, king of Thebes, investigates a plague afflicting his city. The investigation reveals that he himself is the cause — he has unknowingly killed his father and married his mother, fulfilling the prophecy he spent his life trying to avoid.

Antigone defies King Creon's decree forbidding the burial of her brother Polynices, a rebel who died attacking Thebes. Creon represents the state's authority; Antigone represents divine law and family obligation. The conflict between them destroys both.