I had the unfortunate chance to watch it in a theater. This is a TV documentary and not to be seen on theater!!
Many things bothered me, but the fact that the narrator was repeating the same informations 3 times through out the "docu" completely annoyed me.
It was very annoying how much effort the creators put into making it a shockumentary. But it was o-so- lame. Over dramatic narrator pointing out words like "pain" and "virgin" and "fish" and the dramatization focused on very handsome naked teens instead of the brutality and the character and the causes of Albert Fish. It only gave us a spoonful about Fish and repeated the same informations again and again and again and then "naked teens" and "virgin" and only had 2 interviewers!!
The worst one was this psycho horror artifacts creator who was mainly talking about himself and his origins and a few words about Fish as if he had something important to add to Fish's story. And the other one was a woman obsessed with Fish and his sexual life. At a point they had access to Fish's psychiatrist records and they didn't use real Fish's voice at all, and his sayings for not more than 5 minutes! Why??
In a few words don't waste your time with it, it's just super lame.