I think the only other Rendell I’ve read is Thirteen Steps Down, which has a similar setting in the socially fragmented London of the Noughties; The Saint Zita Society features at its core those who work for the rich in one particular exclusive street, mostly immigrants from various parts of Europe and the Commonwealth. A rich white man kills his wife’s black lover, perhaps accidentally, and though only the au pair knows about it, the secret tears apart the social microcosm of the street’s inhabitants (again, it’s a crime novel rather than a mystery novel – we can see that first death coming from miles away, and the interest is in seeing how everyone copes, or fails to). There is a gratuitous psychopath, who I found a bit of a distraction in plot terms, but otherwise it is well done and well observed.