Ray Kilbride has returned home to Promise Falls, New York to both bury his father and take over caretaking responsibilities for his younger brother, Thomas. Thomas is a map-obsessed schizophrenic who spends his days online memorizing cartographic details on a website called Whirl360. One day he sees something in a street view of downtown New York City: an image of a woman being murdered. He wants Ray to investigate. What Ray finds will endanger them both. A breathless thrill ride from the author of The Accident (2011).