He finally got the body he wanted. Now he's hungry for something worse. The nationally bestselling author of The Paleontologist and A History of Fear returns with a spine-tingling new thriller about a weight loss treatment with terrifying side effects. Retail worker Emmett Truesdale has never fit the Southern California mold of six-pack, suntanned masculinity. Over three hundred pounds, he carries the weight of his childhood trauma and millennial ennui around his waist and in his soul. After trying every diet under the sun, he remains stuck--in his dead-end job, in love, and in his body. Desperate for help, he enrolls in a clinical trial for a new weight loss product called Obexity. The treatment is as horrifying as the results are miraculous and as Emmett sheds pounds at superhuman speed, every part of his life improves overnight. Unfortunately, Obexity comes with some killer side effects, including lost stretches of time and overwhelming cravings. Worse, people who were cruel to him