Watching You

Michael Robotham. Little, Brown/Mulholland, $26 (432p) ISBN 978-0-316-25200-3

In Robotham’s disturbing eighth thriller featuring London-based psychologist Joe O’Loughlin and retired detective Vincent Ruiz (after 2012’s Say You’re Sorry), O’Loughlin has a troubled new patient, Marnie Logan. Marnie has a slew of problems—her husband has gone missing, which has forced her to work as an escort to support her children; she’s plagued by “mind slips”; and it appears someone is following her. The good-hearted O’Loughlin maintains Marnie’s innocence after she becomes a suspect in a murder case, but when his office is broken into and only Marnie’s file is stolen, he turns to Ruiz for help. As Ruiz and O’Loughlin hunt for answers, they discover Marnie has a dark past, full of erratic, vindictive behavior, as well as a history of mental illness. Might Marnie be the real culprit? This is a steady and commanding book with an ending that’s sure to give even the most jaded reader a shock. Agent: Richard Pine, Inkwell Management. (Mar.)