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