The Fellowship of the Frog
Edgar Wallace - Der Frosch mit der Maske (original)
Both Scotland Yard and an amateur American sleuth are tracking a master criminal known as The Frog. This moniker refers to the bulging-eyed mask worn by the evildoer, and is reflected by the frog icons painfully tatooed onto the forearms of his henchmen. The trail leads to the country manor of an enigmatic, steely-eyed nabob, whose repressed son has eyes for the artistes at the Lolita cabaret, and whose lovely daughter captures the fancy of both the American playboy and the villain himself. Murder, kidnapping and seduction ensue.
Starring Joachim Fuchsberger, Siegfried Lowitz, Eddi Arent, Elfie von Kalckreuth, Walter Wilz, Carl Lange, Dieter Eppler, Jochen Brockmann, Ernst Fritz Fürbringer, Eva Pflug
Watch "The Fellowship of the Frog" on Amazon released in 1959. It's a crime and thriller movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.