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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 mom would worry herself sick, Anne spends her time getting her hair done and selecting a fabulous gown in which she appears in the following 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.