When a Navy vessel comes across a yacht in distress in the middle of the vast Indian Ocean, Captain Danial Tengku orders his ship to rush to its aid. On board the yacht is a British couple: a horribly injured man, Jake, and his traumatized wife, Virginie, who breathlessly confesses, “It’s all my fault. I killed them.” Trembling with fear, she reveals their shocking story to Danial. 

Ariel Price wakes up in Lisbon, alone. Her husband is gone—no warning, no note, not answering his phone. Something is wrong. She starts with hotel security, then the police, then the American embassy, at each confronting questions she can’t fully answer: What exactly is John doing in Lisbon? Why would he drag her along on his business trip? Who would want to harm him? And why does Ariel know so little about her new—much younger—husband?

Not since childhood has Faraz returned to the Mohalla, in Lahore’s walled inner city, where women continue to pass down the art of courtesan from mother to daughter. But he still remembers the day he was abducted from the home he shared with his mother and sister there, at the direction of his powerful father, who wanted to give him a chance at a respectable life. Now Wajid, once more dictating his fate from afar, has sent Faraz back to Lahore, installing him as head of the Mohalla police station and charging him with a mission.

The year 1978: At her renowned treatment center in picturesque Vermont, the brilliant psychiatrist Dr. Helen Hildreth is acclaimed for her compassionate work with the mentally ill. But when’s she home with her cherished grandchildren, Vi and Eric, she’s just Gran—teaching them how to take care of their pets, preparing them home-cooked meals, providing them with care and attention and love. Then one day Gran brings home a child to stay with the family. Iris—silent, hollow-eyed, skittish, and feral—does not behave like a normal girl.

The swimmers are unknown to one another except through their private routines (slow lane, medium lane, fast lane) and the solace each takes in their morning or afternoon laps. But when a crack appears at the bottom of the pool, they are cast out into an unforgiving world without comfort or relief.