Britain is suffering under the recession, and a young couple – a leftish academic and his girlfriend (who is in the legal profession) – escape a depressed UK for a leisurely break on the Caribbean island of Antigua. But a meeting with a Russian millionaire by the name of Dima plunges the couple down the rabbit hole in a dizzying, picaresque odyssey in which the worlds of the City of London and the shadowy corridors of espionage collide.

In many ways, this is quite unlike any other John le Carré novel, even as it utilises familiar tropes. And the surprises here (which it would be criminal to reveal) demonstrate that one of our greatest writers – to his considerable credit – is refusing to stand still.