By ANDREA WALKER
March 24, 2014 12:00 PM

YOU SHOULD HAVE KNOWN

by Jean Hanff Korelitz |

NOVEL

Grace Reinhart Sachs is the kind of marriage counselor who inspires envy in her patients. The wife of a dashing pediatric oncologist and mother to a handsome son who attends her private-school alma mater, she lives in a spacious Manhattan apartment and dispenses advice to less fortunate couples whose lives are unraveling. Now she has distilled her wisdom in an upcoming, hotly anticipated book (entitled, of course, You Should Have Known), which argues that women in the grips of romantic love actually choose to overlook obvious flaws in prospective mates. But when a horrible crime rocks Grace’s cosseted Upper East Side community and her husband is implicated, Grace has to question her own gift “for social observation and insight” in a way she never has. Could the man she’s been married to for more than 15 years be a total stranger? This consuming, expertly plotted thriller moves along at a slow burn, building up to shocking revelations about Grace’s past and ending with a satisfying twist on her former relationship mantra: “Doubt can be a gift.”

—REVIEWED BY ANDREA WALKER

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