Across the world, thousands of people are shocked by a notification that they once chose to have a memory removed. Now they are being given an opportunity to get that memory back. Four individuals are filled with new doubts, grappling with the unexpected question of whether to remember unknown events, or to leave them buried forever. Finn, an Irish architect living in the Arizona desert, begins to suspect his charming wife of having an affair. Mei, a troubled grad school dropout in Kuala Lumpur, wonders why she remembers a city she has never visited. William, a former police inspector in England, struggles with PTSD, the breakdown of his marriage, and his own secret family history. Oscar, a handsome young man with almost no memories at all, travels the world in a constant state of fear. Into these characters’ lives comes Noor, a psychologist working at the Nepenthe memory removal clinic in London. The process of reinstating patients’ memories begins to shake the moral foundations of her world. As she delves deeper into how the program works, she will have to risk everything to uncover the cost of this miraculous technology. A provocative exploration of secrets, grief, and identity—of the stories we tell ourselves— is “an intellectually and emotionally satisfying thriller” ( ).