Lysander "Fitz" Fitzgibbon used to teach at a university, but quit when his father grew ill and needed someone to take care of him. Years later, after his dad's death, Fitz has given up on his dreams, drives a bus route, and endures twice monthly visits from Jerry, who can't really be called a friend, and barely a benefit. Fitz is lonely, overweight, and figures life won't be getting any better. 

Then Jerry falls for Fitz's neighbor, Henry, and Fitz stumbles over a dead body in the park. As if life couldn't get any worse, he has a run-in with Detective Holland Simms, whose infuriating arrogance and brash behavior provokes Fitz to punch him. But strangely enough, Fitz feels more alive around Simms than he has in a long time, though Fitz finds it hard to believe that the confident Simms would want anything to do with him.