"A firecracker of a novel..." -Liane Moriarty, #1 New York Times bestselling author of Big Little Lies The author of The Fifth Letter takes a laser look at the uneasy relationships between women and the real-world ramifications of online conflicts and social media hostilities in this stunning domestic drama. A story of privilege, unspoken rivalries, and small acts of vengeance with huge repercussions sure to please fans of Sarah Jio and Ruth Ware. Overwhelmed at the office and reeling from betrayals involving the people she loves, Poppy feels as if her world has tipped sideways. Maybe her colleague, Annalise, is right--Poppy needs to let loose and blow off some steam. What better way to vent than social media? With Annalise, she creates an invitation-only Facebook group that quickly takes off. Suddenly, Poppy feels like she's back in control--until someone begins leaking the group's private posts and stirring up a nasty backlash, shattering her confidence. Feeling judged by disapproving female colleagues and her own disappointed children, Frankie, too, is careening towards the breaking point. She also knows something shocking about her boss--sensitive knowledge that is tearing her apart. As things begin to slide disastrously, dangerously out of control, carefully concealed secrets and lies are exposed with devastating consequences--forcing these women to face painful truths about their lives and the things they do to survive.