Scotland Yard and an American playboy investigate a criminal gang led by a mysterious man in a frog-like mask.
Directed byHarald Reinl
Written byEdgar Wallace, Egon Eis, J. Joachim Bartsch
CountryDenmark, West Germany
Runtime89 min
On screen
Joachim Fuchsberger
Elfie von Kalckreuth
Jochen Brockmann