“Homecoming” takes us back to Ford County, the fictional setting of many of John Grisham’s unforgettable stories. Jake Brigance is back, but he’s not in the courtroom. He’s called upon to help an old friend, Mack Stafford, a former lawyer in Clanton, who three years earlier became a local legend when he stole money from his clients, divorced his wife, filed for bankruptcy, and left his family in the middle of the night, never to be heard...