Jacintha Cross and her husband, Gabe Medway, are hired by corporations to test out their security both physically and electronically. Jacintha (Jack) handles the physical security while her husband provides support from home through the security cameras and online databases. However, after a particularly long work night Jack comes home to find Gabe brutally murdered and the police already have their sights on a suspect… her. Now on the wrong side of the law, Jack must use all of her knowledge to find her husband’s true killer while avoiding the police at every turn. Ruth Ware does an incredible job of keeping you captivated through the entire ordeal, whether this is a genre you typically read or not.