In a glass-enclosed city of perfectly straight lines, ruled over by an all-powerful "Benefactor," the citizens of the totalitarian society of OneState are regulated by spies and secret police; wear identical clothing; and are distinguished only by a number assigned to them at birth. That is, until D-503, a mathematician who dreams in numbers, makes a discovery: he has an individual soul. He can feel things. He can fall in love. And, in doing so, he...