George was twelve the first time he saw the Man. It was after his identical twin Bill suffered the traumatic brain injury that left him crippled and unable to speak. George would see the man sitting on a bench at the mall, or at the store standing by the magazines. But he never seemed to notice George, not even when he tried to communicate. Twenty years later, after dropping out of college to care for Bill, George has become a junior high school janitor. Between his struggling with debt, working a physically demanding job, and taking care of Bill's needs, life has not been easy. But George doesn't know the meaning of difficult until the man finally acknowledges him, triggering a terrifying series of supernatural events that leaves George and Bill running for their lives. And as George struggles to protect his twin from an otherworldly evil, he discovers a startling secret about Bill-one that leaves him questioning decades-old assumptions and wondering which of them truly is the stronger half.