Plot Summary:Invited by Leo Peterson, a former dancer who defected long ago, Jessica attends a Boston performance of the famous Soviet Russian Rostoff ballet. She guesses something is up when Leo gets a program from the bottom of the pile with a code; after the performance they are joined in his car by defecting star dancers Alexander and Natalia Masurov but hear on the radio that KGB security agent Serge Berensky has been found dagger-murdered in their dressing room, so Jessica gives them short-term sanctuary at her home while she snoops. KGB Major Anatole Karzof declares to be a fan of her books and joins her, defending he thesis the defectors did it, while FBI Agents O'Farrell and Dewey Johnson conduct the official investigation. She discovers there is more...