This is a German film and not any American Hollywood production, and it is not filmed on location in the swamps of Brazil but actually in Hamburg studios, but it is well made and surprisingly convincing for being all artifice. The story is true though, these rackets did go on and probably still go on today, and we shall never know how many girls from how many countries were lost this way. The music is good also and the one enjoyable thing about the movie. Raymond Burr is as impressive as ever as a qualified villain of professional double standards, and Scott Brady is a positive surprise for his honest acting. Johanna Matz like the other girls all young and pretty also make one-sidedly good impressions, especially Johanna Matz for her innocence. The Brazilian insights, especially in the row aboard the river boat in the end, are delightful, and the story makes sense although scary without exaggerations. It is worth watching but no more.