Delia Hopkins has led a charmed life. Raised in rural New Hampshire by her widowed father, Andrew, she now has a young daughter, a handsome fiancé, and her own search-and-rescue bloodhound, which she uses to find missing persons. But as Delia plans her wedding, she is plagued by flashbacks of a life she can't recall. And then a policeman knocks on her door, revealing a secret that changes the world as she knows it.

The number-one New York Times best-selling author of Small Great Things returns with a powerful and provocative new novel about ordinary lives that intersect during a heart-stopping crisis. The warm fall day starts like any other at the Center - a women’s reproductive health services clinic. Then, in late morning, a desperate and distraught gunman bursts in and opens fire, taking all inside hostage. After rushing to the scene, Hugh McElroy, a police hostage negotiator, sets up a perimeter. Then he finds out that his 15-year-old daughter, Wren, is inside the clinic.

Everything changes in a single moment for Dawn Edelstein. She’s on a plane when the flight attendant makes an announcement: Prepare for a crash landing. She braces herself as thoughts flash through her mind. The shocking thing is, the thoughts are not of her husband but of a man she last saw 15 years ago: Wyatt Armstrong. Dawn, miraculously, survives the crash, but so do all the doubts that have suddenly been raised.

Refusing to believe that she would be abandoned as a young child, Jenna searches for her mother regularly online and pores over the pages of Alice's old journals. A scientist who studied grief among elephants, Alice wrote mostly of her research among the animals she loved, yet Jenna hopes the entries will provide a clue to her mother’s whereabouts. Desperate to find the truth, Jenna enlists two unlikely allies in her quest.

In the course of her everyday work, career-driven assistant district attorney Nina Frost prosecutes child molesters and works determinedly to ensure that a legal system with too many loopholes keeps these criminals behind bars. But when her own five-year-old son, Nathaniel, is traumatized by a sexual assault, Nina and her husband, Caleb, a quiet and methodical stone mason, are shattered, ripped apart by an enraging sense of helplessness in the face of a futile justice system that Nina knows all too well.

Every expectant parent will tell you that they don't want a perfect baby, just a healthy one. Charlotte and Sean O'Keefe would have asked for a healthy baby, too, if they'd been given the choice. Instead their lives are made up of sleepless nights, mounting bills, the pitying stares of "luckier" parents, and, maybe worst of all, the what-ifs.

The discovery of a dead infant in an Amish barn shakes Lancaster County to its core. But the police investigation leads to a more shocking disclosure: Circumstantial evidence suggests that 18-year-old Katie Fisher, an unmarried Amish woman believed to be the newborn's mother, took the child's life. When Ellie Hathaway, a disillusioned big-city attorney, comes to Paradise, Pennsylvania, to defend Katie, two cultures collide - and for the first time in her high-profile career, Ellie faces a system of justice very different from her own.

Olivia McAfee knows what it feels like to start over. Her picture-perfect life—living in Boston, married to a brilliant cardiothoracic surgeon, raising their beautiful son, Asher—was upended when her husband revealed a darker side. She never imagined that she would end up back in her sleepy New Hampshire hometown, living in the house she grew up in and taking over her father’s beekeeping business. Lily Campanello is familiar with do-overs, too. When she and her mom relocate to Adams, New Hampshire, for her final year of high school, they both hope it will be a fresh start. 

Diana O’Toole is perfectly on track. She will be married by thirty, done having kids by thirty-five, and move out to the New York City suburbs, all while climbing the professional ladder in the cutthroat art auction world. She’s an associate specialist at Sotheby’s now, but her boss has hinted at a promotion if she can close a deal with a high-profile client. She’s not engaged just yet, but she knows her boyfriend, Finn, a surgical resident, is about to propose on their romantic getaway to the Galápagos - days before her thirtieth birthday. Right on time.

Ruth Jefferson is a labor and delivery nurse at a Connecticut hospital with more than 20 years’ experience. During her shift, Ruth begins a routine checkup on a newborn, only to be told a few minutes later that she’s been reassigned to another patient. The parents are white supremacists and don’t want Ruth, who is African American, to touch their child. The hospital complies with their request, but the next day, the baby goes into cardiac distress while Ruth is alone in the nursery. Does she obey orders or does she intervene?