That Man in Istanbul

An American adventurer who has a gambling den in Istanbul, who is suspected to be involved in the kidnapping of a nuclear scientist, but ultimately becomes self on the search for the disappeared and gets a striving for world domination secret organization.

Cast: Horst Buchholz, Sylva Koscina, Perrette Pradier, Mario Adorf, Ángel Picazo, Klaus Kinski