In her second novel, Giarratano has ticked the boxes for a successful crime thriller. A psychopathic killer escalating in violence; a loner cop coming to terms with brutal events in her past; a return to past haunts for a traumatised army veteran capable of extreme violence in defence of his family; a quirky, intelligent and off beat federal agent who also has a tragic past; and an authentic Australian setting in various Sydney suburbs. I got quite a thrill of recognition when some of the action took place around the Liverpool streets that I know well, in behind the Spotlight store no less, although I don't agree with her characterisation of the public library there! The book builds nicely to a satisfying conclusion and a tentative thawing of the thick wall of ice surrounding our protagonist. Well worth a try if you are looking for a new mystery author.