A pretty typical, one-dimensional look at an ultra-famous serial killer. Nothing new, nothing interesting. A few sequences had some cool editing but in general the performances, soundtrack, and cinematography were tepid.
A little too disturbing for me to give it more than a three, I'm too busy to really research how true this story is or isn't, either way I find myself wondering what is the purpose in telling it? (Well told, as it is) There isn't much to say that hasn't already been said, and here, it is even less valuable because the source is almost entirely unlikable.