'Wonderful. Deeply touching and utterly heartbreaking, while also being a compelling page-turner. I loved it' S.J. Watson, author of Before I Go To Sleep 'Haunting and original' New York Times Book Review Dr Jennifer White's best friend has been found dead. Amanda was stabbed to death at home, and four fingers neatly removed from her right hand. Jennifer's work as an accomplished surgeon and the stormy nature of her friendship with Amanda mean that she is the prime suspect. But even Jennifer doesn't know if she is the murderer.

Alzheimer's is destroying her once brilliant mind and her memories of that terrible night, and the rest of her life, are now fragmented and confused. She frequently fails to recognise her children when they visit yet at times finds herself vividly reliving moments with her late husband or episodes from her much-loved career. Amanda is confused, but is she also a killer? 'As the narrator's mind is devoured by dementia, she struggles to remember the extent of her involvement in her best friend's murder. LaPlante's characters are completely convincing, the plotting masterful' Donna Leon 'Chilling, memorable and heartbreaking' Val McDermid 'Really terrific - ambitious, clever and human' Nicci French.