The murder of a leader of the Palestinian Martyrs Brigade leads to the arrest of George Saba, a Palestinian Christian accused of collaborating with the Israelis. Omar Yussef, a modest history teacher at a United Nations school in the West Bank, is impelled to investigate the murder to exonerate his former pupil, who he knows is innocent. As he struggles to save George, Omar Yussef is drawn into a complex plot where it is impossible to tell friend from enemy.