THE #1NEW YORK TIMESBESTSELLER, FROM THE AUTHOR OFBIG LITTLE LIES, now an HBO series.

Winner of Goodreads Choice Award for Best FictionEntertainment Weekly's "Best Beach Bet"AUSA TodayHot Books for Summer SelectionAMiami HeraldSummer Reads Pick

"Here's the best news you've heard all year: Not a single page disappoints....The only difficulty withTruly Madly Guilty? Putting it down." -Miami Herald

"Captivating, suspenseful... tantalizing." -People Magazine

Six responsible adults. Three cute kids. One small dog. It's just a normal weekend. What could possibly go wrong?

InTruly Madly Guilty, Liane Moriarty turns her unique, razor-sharp eye towards three seemingly happy families.

Sam and Clementine have a wonderful, albeit busy, life: they have two little girls, Sam has just started a new dream job, and Clementine, a cellist, is busy preparing for the audition of a lifetime. If there's anything they can count on, it's each other.

Clementine and Erika are each other's oldest friends. A single look between them can convey an entire conversation. But theirs is a complicated relationship, so when Erika mentions a last-minute invitation to a barbecue with her neighbors, Tiffany and Vid, Clementine and Sam don't hesitate. Having Tiffany and Vid's larger-than-life personalities there will be a welcome respite.

Two months later, it won't stop raining, and Clementine and Sam can't stop asking themselves the question:What if we hadn't gone?

InTruly Madly Guilty, Liane Moriarty takes on the foundations of our lives: marriage, sex, parenthood, and friendship. She shows how guilt can expose the fault lines in the most seemingly strong relationships, how what we don't say can be more powerful than what we do, and how sometimes it is the most innocent of moments that can do the greatest harm.