During the 1960s Germany, criminal mastermind Dr. Mabuse is using hypnotized victims and the surveillance equipment of a Nazi-era bugged hotel to steal nuclear technology from a visiting American industrialist.
"Journey to the Lost City" is not a specific film by Fritz Lang but the combination of Der Tiger von Eschnapur (1959) with its sequel Das indische Grabmal (1959), done in 1960 by American International Pictures.