The Price of the Bride

While on a Soviet Military Intelligence visit to Britain, a Russian contacts the CIA station in London, wishing to defect to the US, claiming to be Colonel Pyotr Orlov of the KGB. Orlov's information leads to the arrest of several Soviet spies around the world and also gives insights into the Soviets' military planning. But McCready senses that something is wrong, and the head of the KGB's London office, who works for McCready under the name of Keepsake, claims that Orlov is not a defector at all, but a KGB plant.