Amongst the ancient papyri of the Dead Sea, a remarkable scroll is discovered. Written in the first century AD, it purports to be the true account of the life of Jesus, as told by Youdas the sicarios - Judas Iscariot: the missing Gospel of Judas. If authentic, it will be one of the most incendiary documents in the history of humankind. The task of proving - or disproving - its validity falls to Father Leo Newman, one of the world's leading experts in Koine, the demotic Greek of the Roman Empire, and a man the newspapers like to call a renegade priest. But as Leo absorbs himself in Judas' testimony, the stories of his own life haunt him. The story of his forbidden yet irresistible love for a married woman. The story of his mother's passionate and tragic affair amidst the war- time ruins of Rome. They are stories of love and betrayal that may threaten his faith just as deeply as the Gospel of Judas.