Alceo, a university professor who teaches "History of Terrorism", has become obsessed with the ranger from Islam when he lost both his legs in the attack on the American embassy in Nairobi. His wife Leda meets the "stone merchant", a cultured and refined westerner who sells precious gems in Turkey. She falls in love with him but what she doesn't know is that he is a terrorist, and a member of an Al Qaeda cell, led by Sahid, whose mission is to explode a radioactive bomb on a ferry between Calais and Dover. He plans for her to be the mule who unwittingly carries the bomb, though the stone merchant will come to repent his decision because of his love for her.