Ambassador Hit Team

The British Colonel visited a charming couple in their London apartment, said to the woman, “I understand you are fluent in the Slavic languages,” and to the man, “You are handy with a silencer. “How would you two like living in Paris?”
“We would love it. Do you have an assignment for us?”
“Yes, as the British Ambassadors Agents in Paris, you two will do his dirty work, it is the best description I can give you. You would also be his liaison in contacting foreign embassies, Turkey, in particular.”
“Once a month you will make a trip on the Orient Express from Paris to Istanbul, spend a week and return with rolls of film.”
The two were perfect for couriers on the Orient Express, a train to and from Istanbul Turkey. It traveled through Vienna, Romania, and other countries, the ones with chain-saw tongues.
Now, doesn't that sound dandy, except when you learn, aboard the train the other side has an assassin who annihilates his enemies with an icepick shoved into an ear. Makes one shiver.