Blighted by phonophobia, a history student takes refuge from the London din in a quiet bookshop off Charing Cross Road. There he makes a chance discovery: an old scrap of paper hidden in a dusty book. On that scrap is a code hiding a lost musical score - the last work of the evil Anton Valderberg Drache! With Halloween approaching, the student races to unlock the mystery, unaware of the supernatural powers he is about to unleash.