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For readers of Colm Toíbín, a moving portrait of a marriage in crisis and a couple's search for salvation.

David and Kate are happily married fifty-somethings when she's diagnosed with early Alzheimer's. He has never been unfaithful, but after several years of losing Kate more each day, he wonders: What is a married widower supposed to do? Two strong-willed women intervene and everyone finds themselves making unexpected choices.