Truly Madly Guilty is a 2016 novel by Australian author Liane Moriarty. It tells the story of Sam and Clementine, an ordinary yet busy married couple trying to balance work and family life. After the couple is invited by Clementine's old friend Erika to a neighbor's barbecue party, a spiral of intrigue, lust, and betrayal is unleashed. The book was published in July 2016 by Flatiron Books.
