does it follow the book at all ?
It uses the book as a jumping-off point, really. Most of the key characters in the book appear- Juliana Crain, Abendsen (of course), Tagomi, Wegener aka Baynes, Childan, Frink. Joe Cinnadella becomes Joe Blake, an American SS agent (who at one point uses the pseudonym Cinnadella). Well worth the time, IMHO.