I rented this out of curiosity to see how they remade the 1957 version which I saw several times as a youngster. The remake was fun to watch even though there is quite a bit of T & A which has very little to do with the plot. They retained much of what I remember from the original including a lot of the dialog, Johnson driving a 50's boat-tail Cadillac, his 5-phase mission, the metal case where Johnson first put the blood of his victims, Nadine's boyfriend being a policeman, and, of course, the ending. One notable omission was that the doctor wasn't killed.
It would be great if the original could be successfully transferred to DVD.