Part II: how and why not. Perhaps a prescient novelist in the title would give something like “Art loses its soul”, comparing how everything is now digitized with the manner of the 70s to remake some films in color. In fact, the life of the main playwright, the authors banally did not have enough money and instead of the logical continuation of the Hunchback from Soho, they made a remake of the Dead Eyes of London, somewhere verbatim, but also bringing unspent planned ideas.
The main attraction in addition to color, was that they changed the blind for a gorilla. No... instead of the one whose name the most notorious criminals are afraid to pronounce, two meters tall, a hundred kilograms of weight, with glass blind eyes on a bald skull, almost to the touch of wading through the fog of night London, pulling his hairy muscular arms to the neck of a sinner who decided that he was safe in his bed ... and this, they replaced with a man in a monkey costume. It's not even a spoiler, and I don't see any reason to go through the movie to find out, because it's much harder to believe that it's a real monkey than it is to believe that man came from a monkey when he took off his costume. In other trifles, the underground casino was replaced by a certain club, where half-naked muscular boys and titty girls pose, on which you can look, take pictures or take with you. Another last refuge for the blind has turned into a shelter for the re-education (as in the German films about prison) of exceptionally beautiful girls (so this is where they all are).
It seems to me that this is a comedy, although even the characters named Sergeant Pepper and Dr. Jekyll do nothing funny. Only the chief of Scotland Yard whose half-naked mistress appears at the most inappropriate moments seems amusing. The rest of the actors look carelessly packaged compared to their predecessors in 1961, such as Eddie Arent or Klaus Kinsky, especially unsuccessful was the hero Horst Tappert, whose level is the films of Jesus Franco. And little more than Germany in the era of pop culture was different from England, so even the main feature of the series is a parody, now no more than self-irony. And therefore, certainly has no sense to watch this remake, not seeing "Dead Eyes of London", otherwise you can easily get the wrong idea about the genre - krimis (German crime films based on the books of Edgar Wallace), and he clearly does not deserve it, not inferior to his Italian counterpart - giallo (born from Italian translations of the same Wallace in the 30s).