Scientist Dr. Radcliffe boards a train, is kidnapped, and his bodyguard murdered and dumped in the luggage carts. A young Michael Caine plays Sergeant Harry Palmer, the kind of man who slouches like a pregnant camel when appearing before his superior, prefers dry sarcasm with his conversations, takes pride in being considered a little insubordinate, insolent and a trickster, and wears black, thick-rimmed glasses. His service with British Intelligence was a decision to avoid prison, after having been made an example of when caught making money off the Germans in black market dealings. He’s given a new assignment as the replacement security escort, something slightly more exciting than his usual observation jobs, which includes a small pay increase, the issuing of a Colt .32, and working for Major Dalby (Nigel Green), a man even more straight-laced than his previous, humorless boss Colonel Ross (Guy Doleman). Every action taken by each agent requires extensive paperwork and bureaucratic regulations, numbing the effectiveness of Palmer’s streetwise skills.
Without Radcliffe, the scientific department will be shut down, so it’s imperative that Darby’s division gets to him first. Eric Ashley Grantby, code name Bluejay (Frank Gatliff) is the likely ringleader behind the nabbing, and will sell him to the highest bidder. Palmer finds Bluejay almost immediately, which ends in violence and two very impressive, faraway shots out of the range of sound that are curiously thrilling. Although it was released in 1965, the cinematography and camerawork is surprisingly contemporary, with handheld shots, unique angles from inside tight spaces or voyeuristically just outside the circle of action, and gritty locales, not terribly unlike the French Connection made six years later. On a hunch, Palmer orders a raid that produces nothing but a damaged audio tape marked with the name IPCRESS. When they finally succeed in making a trade for Radcliffe, who appears to be brainwashed, Palmer accidentally kills a CIA agent tail, and must contend with heat from the Americans. He’s in a sticky situation – neither side is particularly interested in his wellbeing, and now he’s being framed for murder.