unwitting courier

Hitchcock masterfully traps ordinary people in extraordinary circumstances where they become unwitting pawns in larger conspiracies, most notably in 'North by Northwest' and 'Sabotage'.

Reed's 'The Third Man' epitomizes the unwitting courier through Holly Martins, an innocent writer drawn into post-war espionage and moral ambiguity in Vienna's shadow world.

Truffaut explores the vulnerability of everyday citizens entangled in espionage and deception in films like 'Confidentially Yours,' where characters unknowingly carry dangerous secrets.