This is the deeply disturbing and horrific story of Asperger's Syndrome affected Dr Maria Martinez, convicted of the murder of priest, Father O'Donnell. She is in prison and is experiencing odd memories of events and people that appear to be unreliable as she teeters towards insanity. With everyone questioning the validity of her memories, Maria herself questions her version of events and the state of her mental health. She finds prison life traumatising and the actions of psychiatrists and therapists strange.

Maria finds solace in assiduously recording her memories, insistent thoughts, algorithms etc. in a notebook she takes everywhere. Maria is seriously assaulted by a prisoner who seems intent on wanting her dead and a new prisoner who tells her she has been sent to protect her as MI5 wants her killed. These and other events lend credence to her memories. There are hints of a shady project Callidus, weird drugs and the possibility of an appeal against her conviction.

Maria goes in search of her identiry. Who is she? Can she trust anyone? Can she trust herself? Why is her life under threat from the intelligence agencies? What is she to make of her remarkable and strange abilities? This is a gripping, terrifying and unsettling read on the life of Dr Maria Martinez. Many thanks to Harlequin for a ARC via netgalley.