
Plot
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.
Trailer
Cast

Joachim Fuchsberger
Richard Gordon

Siegfried Lowitz
(Ober-)Inspektor Elk (German version) /(Chief) Inspector Hedge (English version)

Eddi Arent
James

Elfie von Kalckreuth
Ella Bennet

Walter Wilz
Ray Bennet

Carl Lange
John Bennet

Dieter Eppler
Joshua Broad

Jochen Brockmann
Philo Johnson

Ernst Fritz Fürbringer
Sir Archibald

Eva Pflug
Lolita

Fritz Rasp
Ezra Maitland

Erwin Strahl
Sergeant Balder (German version) /Sergeant Barclay (English version)

Ulrich Beiger
Everett

Michel Hildesheim
Mills

Charlotte Scheier-Herold
Lady Maggie Farnsworth (German version) /Lady Aubrid Farnsworth (English version)

Reinhard Kolldehoff
Lew Brady

Benno Gellenbeck
Inspector Ghent (voice) (uncredited)

Werner Hedman
Inspektor Genter (German version) /Inspector Higgins (English version) (uncredited)

Günther Jerschke
Voice of Newsreader on Radio (voice) (uncredited)

Holger Munk
Sgt. Rubby (Sir Archibalds Vorzimmer-Sergeant) (uncredited)

Olaf Ussing
Lord Charles Farnsworth (uncredited)

Carl Ottosen
(uncredited)