George Smiley had liked Samuel Fennan, and now Fennan was dead from an apparent suicide. But why? Fennan, a Foreign Office man, had been under investigation for alleged Communist Party activities, but Smiley had made it clear that the investigation -- little more than a routine security check -- was over and that the file on Fennan could be closed. The very next day, Fennan was found dead with a note by his body saying his career was finished and he couldn't go on. Smiley was puzzled...