A body is found in the ruined Constantinople hippodrome: a woman, clutching a piece of red stone. She's recently given birth, but there's no sign of the baby. Inspector Cetin Ikmen discovers she was a Byzantine specialist on a crusade to protect the historic but now squalid areas of Istanbul that her enemy, property developer Ahmet Oden, seeks to destroy and rebuild. As Ikmen searches for the lost child and the truth behind her death, the people of Istanbul rise up in protest against their government in Gezi Park, and the city lurches into chaos and anger. Against this background, Ikmen will unravel a tale of ancient hostility and modern desires, where the truth is concealed within the secret history of this antique city.