Ancient Greece, the Kingdom of Pisa. King Pelops has declared his bastard child Chrysippus heir to the throne. His queen Hippodamia convinces Pelops' rightful heirs, her sons Atreus and Thyestes, to kill their half-brother. So begins the infamous story of a deposed king who eats his own children, after being served them in a feast by his brother. Thyestes explores the constant that has underpinned human nature for centuries: that man is brutal, capable of anything. And in the spaces between the banal and the ordinary, terrifying acts occur.