It begins with an astonishing request from a thirteen-year-old prospective client. Allegra Gardner's sister Fiona was murdered six years ago. It seemed like an open-and-shut case: the accused, Lonnie Stall, was seen fleeing the scene; his blood was on Fiona and her blood was on him; most damningly, Lonnie Stall pleaded guilty. But Allegra believes Lonnie is innocent and has been wrongly imprisoned. The Gardner family is one of the richest and most powerful in the country, and Allegra's parents do not believe in reopening this case. Was justice really served all those years ago?