Some borders run through a marriage.
VIENNA, 1974.
British intelligence officer Daniel Mercer knows how to question a document. A quiet discrepancy in Czechoslovak military figures gives him a harder problem: whether the man behind it is offering the truth, setting a trap, or trying to survive.
His wife, Elena, has built a life across languages and loyalties, keeping her marriage, her work, and her ties to Hungary in careful balance. As pressure gathers around Czechoslovak officer Tom s Kov ř, those boundaries begin to fail.
Between Vienna, Prague, and Budapest, Daniel and Elena must decide what they owe their countries, their marriage, and the people their silence could endanger.