A woman betrayed by her husband murders their children to punish him. Euripides gave the barbarian sorceress a voice of terrifying rationality, and Athenian audiences didn't know what to do with it. The play still shocks. Every few years someone stages a new Medea, and the argument about whether she's a monster or a hero starts over.

The case for it, the case against, and the rest of the canon open with Pro.