'An enticing and timely tale of love and espionage' When a Ukrainian man in London saves Anna from a mugging, it is the start of a passionate affair. Thirty years earlier, her mother had an affair with a KGB agent, but unawares, Anna knows only that her parents died in a mysterious car crash in Berlin soon after the fall of the Berlin Wall. Now in the winter of 2021, as Russian troops amass on the Ukrainian border, her estranged husband insists her lover isn't Ukrainian, but a Russian agent determined to compromise her family. Should she trust her head or her heart? This is Anna's puzzle.