A is occurring in the land of Thebes. It is causing , , and . The people and the go to and ask for his help; in the past he saved the city from the by answering her . Oedipus sends to go to Delphi to find out what act or pledge can save the city. Creon says that the murder of brought the plague; Apollo commands that they find the and take revenge on this person to end the plague. Creon says that a band of killed the King; no one could find the murderer because of the problems with the . Oedipus declares that anyone who has knowledge of the murder must ; once the murderer is found, the individual will be from society regardless of whom he or she may be.