Neverwhere is the novelization by Neil Gaiman of the television serial Neverwhere, also written by Neil Gaiman. The plot and characters are generally the same as in the series, but the novel form allowed Gaiman to expand and elaborate on certain elements of the story. Neverwhere, the book eventually experienced greater success than Neverwhere the television production, which has faded into relative obscurity.
Neverwhere is the story of a Scotsman living in London named Richard Mayhew, and his bizarre journeys through the dangerous London "underworld". At the start of the story, he is a young businessman, with a dull job and a fiancée, Jessica, who seems to view him as a fashion accessory more than as a person. All this changes, however, when he stops to help a mysterious young girl who appears before him, bleeding and weakened, as he walks with his fiancée to a dinner with her influential boss. This one action sets his life on an unstoppable path of danger, mystery, betrayal, and...
full article at wikipedia