Mary Kubica writes the kind of thrillers I love to listen to in the car. In this fine offering, Esther Vaughn, an exemplary young woman, disappears without a trace from her Chicago apartment one Saturday night. Her roommate, Quinn, is devastated and in searching for Esther, finds there is a lot she did not know. Meantime, on the other side of Lake Michigan, a mysterious young woman appears and becomes an obsession for a lonely young man. Is it Esther? Why is she there? Kubica kept me guessing until the end.