Oedipus Rex (the King) is the first of a trilogy of plays about Oedipus and his children. The other two plays are Oedipus at Colonus, which continues the sufferings of Oedipus, and Antigone, which is about the daughter of Oedipus, who violates a decree of the king in order to fulfill her religious obligations. The central rhetorical issue in Oedipus Rex is whether Oedipus and Jocasta are innocent victims of a terrible fate, or whether both son and mother are fully aware of their actions. If the former position is true, then there is no moral or religious lesson that we can learn. If the latter position is correct, then Oedipus is perhaps deserving of any punishment and misery that comes his way.