Jen and Hugh Maddox have just survived every parent’s worst nightmare. Their 15-year-old daughter, Lana, was found bloodied, bruised and disoriented after going missing for four days during a mother-daughter vacation in the country. She lies mute in her hospital bed, unwilling or unable to articulate what happened to her during that period. Even when she returns to the family home and her school routine, Lana only provides the same frustrating answer over and over: "I can’t remember." Without telling Hugh or their pregnant older daughter Meg, Jen sets off to retrace Lana’s steps, a journey that will lead her to a deeper understanding of her youngest daughter, her family and herself.

In this darkly riveting debut novel --- a sophisticated psychological mystery that is also a heartbreakingly honest meditation on memory, identity and aging --- an elderly woman descending into dementia embarks on a desperate quest to find the best friend she believes has disappeared. Her search for the truth will go back decades and have shattering consequences.