Turn of Mind - Alice LaPlante (Paperback) 16-08-2012 Winner of Wellcome Trust Book Prize 2011.

Jennifer White can't remember whether she murdered her best friend Dr Jennifer White, a once brilliant surgeon, is slowly losing her mind. Amanda, her best friend, is found stabbed to death. Four of her fingers have been expertly removed. Suspicion immediately falls on Jennifer. How can she prove her innocence when even she doesn't know if she's the murderer?