Euripides. The Bacchae.

This play follows the progress of a religious ceremony dedicated to the worship of Dionysus and the religious fervor that ensues, leading to maternal filicide.

Annotation
Euripides. The Bacchae and Other Plays. Trans. James Morwood. Oxford: Oxford University Press, 2000. Print.

Quotes and Notes
This play concludes with Agave, the mother of Pentheus, and a group of fellow worshipers, attacking and dismembering Pentheus after he attempts to invade their all-female ceremony. Agave was possessed by the god Dionysus at the time of the attack and is unaware of what she has done. She returns to Thebes bearing Pentheus's head as a trophy but, as the possession wears off, she realizes the terrible crime she has committed and is sent into exile.