Subterfuge (1968) - Producer Peter Snell CIA agent Donovan (Gene Barry) travels to Britain to untangle a web of international spies. He falls for the estranged wife of local secret agent Langley (Tom Adams). Anne (Joan Collins) starts a romance with Donovan before her son is kidnapped by rival agents. While any other woman would worry herself sick, Anne spends her time getting her hair done and selecting a fabulous gown in which she appears in subsequent scenes. Donovan narrows the suspects down to a trio of agents, all who may have reason to turn double agent and place their country in political turmoil with counter espionage. Stars Gene Barry, Joan Collins, Richard Todd, Tom Adams, Suzanna Leigh. Director Peter Graham Scott.

Subterfuge (1968)   http://www.imdb.com/title/tt0065045/