"What have we learned (and what might we have forgotten) from history's bloody backwash? Guilt, love, and history are three skeins, woven together to create human beings or, alternately, human monsters. The question of wartime culpability undergirds the May-December romance in postwar Berlin between Hanna, a weary-looking, sexually rapacious streetcar ticket-taker and Michael, a young schoolboy whom she seduces, ravenously and to his great delight....