The picture has been called an amalgam of Alfred Hitchcock's Der unsichtbare Dritte (1959) and Der Mann, der zuviel wußte (1956).
One of a number of spy films that Senta Berger appeared in during the mid-'60s. The others were Das Quiller Memorandum - Gefahr aus dem Dunkel (1966), Mohn ist auch eine Blume (1966) and Wenn Killer auf der Lauer liegen (1967).
One of a number of espionage films directed by Don Sharp. They include Den Aasgeiern eiskalt serviert (1974); Marrakesch (1966); Bäreninsel in der Hölle der Arktis (1979); Ein Mann namens Hennessy (1975) and Die 39 Stufen (1978).
This film's title often gets confused with the similarly alternate title of "Bang You're Dead" [from Das verräterische Auge (1965)] first released around the same time.
Back-to-back consecutive spy movie for co-writer Peter Yeldhamm who had co-penned L - Der Lautlose (1965) the previous year. Yeldham had also recently co-written such similar exotic fare as Blonde Fracht für Sansibar (1964) and In Beirut sind die Nächte lang (1965) set in Beirut.