The Tamarind Seed (1974)

In the midst of the Cold War, a British woman and a Russian man meet in Barbados. As their relationship unfolds, they become entangled in a web of surveillance, faked deaths, and political intrigue. The woman finds herself torn between her loyalty to her country and her growing feelings for the man. In a world of secrets and hidden agendas, they must navigate the treacherous waters of love and loyalty.