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