NEW YORK TIMES BESTSELLER • FINALIST FOR THE ITW THRILLER AWARD • Perfect husband. Perfect father. Perfect liar?

“Terrific.”—John Grisham
“Superb.”—Lee Child
“Breathtaking, heart-pounding.”—Louise Penny
“A fast-paced, relentlessly gripping read.”—Chris Pavone

Vivian Miller. High-powered CIA analyst, happily married to a man she adores, mother of four beautiful children. Until the moment she makes a shocking discovery that makes her question everything she believes.
 
She thought she knew her husband inside and out. But now she wonders if it was all a lie. How far will she go to learn the truth?  And does she really . . . 
 
. . . NEED TO KNOW?

Film rights sold to Universal Pictures for Charlize Theron • Rights sold in more than 20 markets

“Shaping up to be one of the year’s biggest new thrillers.”Entertainment Weekly
 
“So timely . . . Think of the perfect mix of Homeland and The Americans. . . . Need to Know needs to be read by all who relish spy novels. As entertaining as it is informative and as irresistible as it is impossible to put down.”Providence Journal
 
“Pulse-pounding.”O: The Oprah Magazine
 
“Accomplished . . . a nonstop thriller tapping into a hot mix of contemporary digital counterintelligence, old-school spying and ageless family drama.”Shelf Awareness

“An early contender for next year’s Gone Girl.”GQ (UK)
  
“The Russia page-turner that should be on everyone’s list.”New York Post
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