Jockey Josh Swallow is about to retire and he's aiming to go out at the top. He's ridden over 1000 winners and landed all the big prizes in the sport - all except one. So he's determined that this season the title of champion jockey will finally be his. But it won't be easy. There's Ben O'Brien, the brilliant young Irish rider in his first full season who already has a lead on Josh in the championship race. And leading trainer Leo Lovall, once Josh's best friend and now his most bitter enemy. There's also someone else with a keen interest in Josh. She's his biggest fan, though he has no idea she exists. And hers is the kind of obsession that will never be satisfied - not even by murder...