The movie was adapted by Paul Osborn[?] from two novels -- Borden Deal[?]'s Dunbar's Cove and William Bradford Huie[?]'s Mud on the Stars. It was directed by Elia Kazan.
... (HSR, Defunct) Denmark Police Intelligence Agency[?] (PET) Egypt General Directorate of State Security Service[?] Finland Suojelupoliisi[?] ...