A wise and hilarious novel from the bestselling author of Funny Girl, High Fidelity, and About a Boy.

A brutally truthful, compassionate novel about the heart, mind, and soul of a woman who, confronted by her husband’s sudden and extreme spiritual conversion, is forced to learn “how to be good”—whatever that means, and for better or worse.

Katie Carr is a good person . . . sort of. For years her husband’s been selfish, sarcastic, and underemployed.  

But now David’s changed. He’s become a good person, too—really good. He’s found a spiritual leader. He has become kind, soft-spoken, and earnest. Katie isn’t sure if this is deeply felt conversion, a brain tumor—or David’s most brilliantly vicious manipulation yet. Because she’s finding it more and more difficult to live with David—and with herself.