"It's London in 1876, and the whole city is abuzz with the enigmatic disappearance of a famous foreign pianist. Lenox has an eye on the matter - as a partner in a now-thriving detective agency, he's a natural choice to investigate. Just when he's tempted to turn his focus to it entirely, however, his grieving brother asks him to come down to Sussex, and Lenox leaves the metropolis behind for the quieter country life of his boyhood. Or so he thinks....