THE NUMBERS STATION really reminds me of Anton Corbijn's 'The American' a lot. Emotionless espionage operatives discovering them. In both instances these males are swayed by females reminding them. Very different results to the stories, however.
THE NUMBERS STATION is definitely the more dark of the 2 films, filmed in the English country side, and in a forbidding fortress like facility in which codes in the form of 4 digit strings are broadcast relaying instructions to field espionage personnel and military units. John Cusack is the protagonist, an operative about to break down from the stress and unable to carry out an assignment, a murder. So he's reassigned to a numbers station, to more or less rest. He has no such luck when the station is attacked by parties who wish to broadcast false assignments. His partner, an attractive young woman played by Malin Akerman, is personable enough to invoke the fellow's emotions. Very poetic, and again, very similar to the Corbijn film.
Again I'm reminded of another film, Nicholas Ray's ON DANGEROUS GROUND , in which a detective who has become brutal and excessive, is reassigned to a rural murder case, becomes infatuated with a woman there and is relieved of some of his stress. Also I have an record by the rock band Porcupine Tree named 'Stupid Dream' in which one of the songs, 'Even Less', has a sample of these number strings being intoned. My guess is that it's a parody. I always wondered what they were.