During a Caribbean holiday, a British civil servant finds herself falling in love with a Russian agent.

Julie Andrewsas Judith Farrow
Omar Sharifas Feodor Sverdlov
Anthony Quayleas Jack Loder
Dan O'Herlihyas Fergus Stephenson
Sylvia Symsas Margaret Stephenson
Oskar Homolkaas General Golitsyn
Bryan Marshallas George MacLeod
Celia Bannermanas Rachel Paterson
Roger Dannas Colonel Moreau
Freddie Young