"Once a police detective in St. Paul, Minnesota, Rushmore McKenzie has become not only an unlikely millionaire, but an occasional unlicensed private investigator, doing favors for friends and people in need. When his stepdaughter Erica asks him for just such a favor, McKenzie doesn't have it in him to refuse. Even though it sounds like a very bad idea right from the start. The father of Malcolm Harris, a college friend of Erica's, was found murdered...

Since becoming an unlikely millionaire and quitting the St. Paul Police Department, Rushmore McKenzie has been working as an unlicensed private investigator, basically doing favors for friends and people in need. But even for him, this latest job is unusual. He's been asked to find a stolen Stradivarius, known as the Countess Borromeo, that only the violinist seems to want him to find. Stolen from a locked room in a B&B in the violinist's former hometown...