New York at the end of the 20th century–hardly St. Augustine’s city of God–is the canvas on which Doctorow paints an impressionistic portrait of man’s frail moral nature and the possibilities of redemption. Challenging and provocative, this rambling narrative is a mix of alternating voices that touch on such matters as theology, popular music, astronomy, physics and science, war, carnal love, the verisimilitude of film to life (and distortions thereof).