Shari Lapena is the internationally bestselling author of the thrillers The Couple Next Door, A Stranger in the House, An Unwanted Guest, Someone We Know, The End of Her, Not a Happy Family, and Everyone Here Is Lying, which have all been New York Times and The Sunday Times (London) bestsellers. Her books have been sold in forty territories around the world. She lives on a farm outside of Toronto.

AN INSTANT NEW YORK TIMES BESTSELLERShari Lapena's new thriller, AN UNWANTED GUEST, is available now!"The twists come as fast [as] you can turn the pages." -People"Provocative and shocking." -Lisa Gardner, New York Times bestselling author of Find Her"I read this novel at one sitting, absolutely riveted by the storyline. The suspense was beautifully rendered and unrelenting!" -Sue Grafton, New York Times bestselling author of XIt all started at a dinner party. . .A domestic suspense debut about a young couple and their apparently friendly neighbors-a twisty, rollercoaster ride of lies, betrayal, and the secrets between husbands and wives. . .Anne and Marco Conti seem to have it all-a loving relationship, a wonderful home, and their beautiful baby, Cora. But one night, when they are at a dinner party next door, a terrible crime is committed. Suspicion immediately lands on the parents. But the truth is a much more complicated story.Inside the curtained house, an unsettling account of what actually happened unfolds. Detective Rasbach knows that the panicked couple is hiding something. Both Anne and Marco soon discover that the other is keeping secrets, secrets they've kept for years. What follows is the nerve-racking unraveling of a family-a chilling tale of deception, duplicity, and unfaithfulness that will keep you breathless until the final shocking twist.