Bag 6 backside: "This is Edgar Wallace speaking!"

Another wellbeloved German-Sixties-Black/White-TV-production.
And a bunch of unanswered questions: Who is Edgar Wallace?
Is he a real author? Was he a murderer when he was younger and learned to write
in a prison- offered workshop: "How To Write Without Being Boring!"
Well, in the latter case he would have been pretty successful.

The result of this serie was that all Germans believed that English gentlemen/and women
lived exactly as shown in the film! Was Klaus Kinski an Englishman?