During a Caribbean holiday, a British civil servant finds herself falling in love with a Russian agent.
Julie Andrews
Judith Farrow
Omar Sharif
Feodor Sverdlov
Anthony Quayle
Jack Loder
Dan O'Herlihy
Fergus Stephenson
Sylvia Syms
Margaret Stephenson
Oskar Homolka
General Golitsyn
Bryan Marshall
George MacLeod
David Baron
Richard Paterson
