Dungeon all-star Joachim Fuchsberger has the role of the American Richard Gordon, rich guy and part-time amateur sleuth! So far, I think I've seen 10 movies with Joachim in them, some day, I hope to see the other seventy-one. He's only been in three movies the last decade, but is in a TV movie scheduled for release in 2013 called "Live Is Live II: Später Geht's Nicht"
"Nachts Im Nebel An Der Themse" which was written by Karl Bette, Theo M. Werner, and Hans Billian! The rest of the music in the movie was composed by Willy Mattes and an uncredited Peter Thomas!