The BBC is broadcasting adaptations of the first three Aurelio Zen Italian-set mysteries by Michael Dibdin, namely Ratking, Vendetta and Cabal. This is an author I have noticed on the shelves for many years but never got around to reading any of the books. I'll rectify that now.
The first three novels have been given Rufus Sewell covers (he's playing Zen) and are out now.
It seems that Ratking is the first in the series although the BBC has broadcast Vendetta as the first episode.