A gripping thriller about a man who may or may not have dementia--and who may or may not be a serial killer--from a master of twists and turns, in the tradition of Laura Lippman and Gillian Flynn An obsessive young woman has been waiting half her life--since she was twelve years old--for this moment. She has planned. Researched. Trained. Imagined every scenario. Now she is almost certain the man who kidnapped and murdered her sister sits in the...

A woman's birthright holds the key to a rash of brutal murders.

1892. Lady Emily Hargreave's well-intentioned husband, Colin, persuades her to recuperate at his family's estate in Normandy. While out riding, Emily happens on the butchered corpse of a woman, later identified as an escaped inmate from an insane asylum outside Rouen. The nature of the victim's wounds suggests that Jack the Ripper has crossed the Channel to France.

Hannah had a perfect life in London-a loving husband, a great job-until she did something shocking. Something that she doesn't quite understand herself; and now she has landed herself in a high-risk psychiatric unit. Since Hannah has been admitted, two women have died, including Charlie, one of her closest friends in the institution. It's a high-risk unit, the authorities say. Deaths happen. But Hannah knows Charlie wouldn't have killed herself....