I watched that The Case That Haunts Me. I have watched a ton of crime TV but nothing has creeped me out more than that case. I mean, international cannibalism, a cannibal website, serial murderer, the whole thing. And the things they did describe were awful enough I cannot imagine (fortunately) what was too awful to describe for the episode. Good Gawd.
I liked the detectives though, especially the narrator. He was so deadly serious at all times. There was just something so utterly human about that detective while at the same time wonderfully diligent and competent.
What I find fascinating, having watched a ton of non-US crime TV, real and fictional, is how non-US cops just break into homes when no one is home, bug them, clone their computers, wire them for video and sound, and then sneak out without seeming to be at all concerned about the legality of it, which of course, means it's legal there. No talk about warrants and meeting standards of probable cause, they just go in and look around, take things, set up trackers on cars, etc. On US shows they always talk about getting warrants and probable cause and judges signing things etc. On non-US shows nary a peep.