The Tamarind Seed

An attractive British Home Office assistant named Judith Farrow (Julie Andrews) is on vacation on the Caribbean island of Barbados after ending a failed love affair with married Group Captain Richard Paterson (David Baron (actor)), an important British minister. She meets Feodor Sverdlov (Omar Sharif), a Soviet military attaché who is also on vacation staying in an adjacent bungalow. The two spend time together exploring the island, visiting museums, and going out to dinner. When British intelligence learns that Sverdlov is spending time with the mistress of a British minister, they begin monitoring their actions.