(1959, Upgraded 10/15/21) Carl Lange, Joachim Fuchsberger, Siegfried Lowitz, Eddi Arent. A young American detective becomes involved in a series of ghastly crimes. The only clue to be found is the mysterious seal of the White Frog. Some of the murder sequences in this film are pretty grim for the time. The Frog's weird mask is cool! Takes place in London's mysterious Soho district. This was the first in a long running series of German made Edgar Wallace films. From a very nice 35mm original print.