Double-Fault

"The evil-doers are bankers, gangsters and money launderers, not the K.G.B.

"But there is a filter of nostalgia that gives the narrative a jaunty midcentury feel.

"Characters go on tennis holiday. Spies sing from “La Traviata” while cooking. Everyone speaks French. And Britain is a major player in a global conspiracy." --Chelsea Cain

(See le Carre in my recommended reading.)