Hermann Wolff, a Wehrmacht Colonel assigned to German's intelligence agency, the Abwehr, investigates a suspicious train crash on the outskirts of Berlin with his right-hand man, Lieutenant Johann Bauer. Among the belongings of one of the bystanders is one of a spy's standard tools of the trade. When interrogated, its owner claims to have stolen it from a Japanese man named "Maki Katsuhiko..."
without anyone ever knowing 
his true identity,
،دون أن يعرف أحد هويّته الحقيقيّة
sin que nadie conozca su verdadera identidad,
sin que nadie conozca su verdadera identidad,
que foi enterrado para sempre sem
nem mesmo sabermos a sua real identidade,