"I raced through this gripping tale of domesticity and deceit. Cleveland deliciously ratchets up the tension at every turn . . . you won't be able to put it down until the final, stunning page!" (SHARI LAPENA, author of THE COUPLE NEXT DOOR)"Heart-poundingly suspenseful and heart-wrenchingly insightful, NEED TO KNOW hums with authentic detail, crisp storytelling, and characters that will long stay in your thoughts." (J. P. DELANEY, author of THE GIRL BEFORE)"This compulsive, clever thriller will have you reading long into the night." (Red)"If you liked THE COUPLE NEXT DOOR, try NEED TO KNOW by Karen Cleveland . . . Thrillers don't get much more twisty and turny than this one. If you don't mind staying up reading til 3am, this is the one for you." (BBC Arts and Entertainment, 'Books To Look Out For in 2018')"Impressively compelling . . . this is probably the banker among the New Year crop thanks to its sheer page-turning readability." (John Williams, Mail on Sunday)Perfect husband. Perfect father. Perfect liar?Do you really know who you kissed goodbye this morning?The New York Times bestselling thriller that everyone is talking about?You won?t be able to put it down!? Shari Lapena, author of THE COUPLE NEXT DOOR?Heart-poundingly suspenseful? J. P. Delaney, author of THE GIRL BEFORE?An immensely satisfying story with serpentine twists and turns . . . ingenious and compelling? Daily MailYou get to work. Make a coffee. Turn on your computer.Your task: break into a Russian criminal's laptop and find proof that he's concealing five deep-cover agents - seemingly normal people living in plain sight.You?re in. Five faces stare back at you.One of them is your husband.**PICKED FOR THE SIMON MAYO RADIO 2 BOOK CLUB**?This compulsive, clever thriller will have you reading long into the night? Red?If you liked THE COUPLE NEXT DOOR, try NEED TO KNOW . . . thrillers don?t get much more twisty and turny than this one? BBC Arts and Entertainment ?Books to Look Out for in 2018??Impressively compelling? Mail on Sunday?The heart-stopping plot barely lets up pace throughout this brilliant novel? Heat?You?ll devour this terrific debut like the rest of us? JOHN GRISHAM?The real deal? PATRICIA CORNWELL?Superb? LEE CHILD?Remarkable? Sunday Times Magazine *Thriller of the Month*