It would be hard to imagine parents more perfect than Claire and Theo. In the mid-1960's, in a rambling apartment overlooking Central Park West, they raise their son Willy with enthusiasm, encouragement, and what might today be called unconditional love. It might also be called unconventional love, for both Claire and Theo are women. They are Willy's mothers, and until a mistrustful outside world intrudes to try to tear them apart, they are the best...