J J Connington 
In Whose Dim Shadow [EPUB ebook] 

In this, the tenth Clinton Driffield mystery, the action moves away from a country setting to the English suburbs, inhabited by a cast of unusual diversity: an ambitious young policeman, a naive journalist, an elderly clerk with dreams of foreign travel and an unhappily married Frenchwoman.This meticulously clued mystery shows Connington at his compelling best and ends with a satisfying flourish.