James Tyrone is a sports writer for a tabloid paper called The Blaze. It's not the most respectable paper in town, but it pays better than its more prestigious counterparts and Tyrone badly needs the money.
Tyrone's principal beat is horseracing and one day after lunch he walks a fellow scribe back to his office. The other reporter, Burt Chekov, writes for a competitor, but he and Tyrone have been friends. Chekov has been drinking heavily of late and seems to be deeply troubled. He's also been touting horses in his column, encouraging readers to bet heavily on his picks, only to have some of the horses withdraw from the races at the last minute, leaving the people who bet on them out of luck. As Tyrone walks Chekov to his office, Chekov says something that leads Tyrone to believe he has been being blackmailed and then, shortly thereafter, Chekov "accidentally" falls out of the window of his office to his death.
Tyrone smells a story and begins digging into the horses that Chekov was touting. He ultimately discovers a nefarious scheme to cheat bettors out of their money. Before long, powerful forces are warning him to drop the story, "or else." Tyrone believes that he is impervious to the sorts of threats that doomed his friend, Chekov, but when the villains discover that Tyrone may have a weak spot after all, all bets may be off.
This is a fairly typical Dick Francis story that should appeal to anyone who has enjoyed his other books. James Tyrone is the usual stand-up Francis protagonist, and the bad guys are dependably powerful and villainous. The end result is a very good read.