This complex thriller offers one of the most heavily fleshed out characterizations in recent years; that may be the book's biggest drawback, however. The interesting premise of a Nazi "catcher" still on the prowl is fascinating, but at the same time, Katzenbach makes us plod through a lot of superfluous narrative, that overstates many of the characters' inner thoughts and slows the pace down a little too much.
Overall, though, characters like Simon Winter; Walter Robinson, and Espy Martinez, are glowing in their richness and intricacies. Even Leroy "F" Jackson, an ignoble druggie, turns makes an astounding turnaround in dealing with the horrifying murderer.
There are some riveting scenes, as well; early in the book, there's a scene where Sophie gets ready for bed, and it is laid out so slowly that it creates a tremendous aura of suspense, as you know the old lady is going to bite the bullet. Unfortunately, other lengthy scenes, don't quite have this edge.
The ending is quite well done, and it has one of those "ah no" endings.
All in all, despite is plodding pace, it's a very well written story.
RECOMMENDED.