As some other review said, you learn more about the Jeffrey Dahmer case by reading wikipedia, than watching this movie because half of what the interviewees are talking about have nothing to do with it.
And while dramatizations of actual events may be great in a documentary, what half brain thought it was a good idea to constantly interrupt the storytelling to show long clips of:
Jeffrey Dahmer buying an aquarium fish in a store.
Jeffrey Dahmer eating a hamburger on the bus.
Jeffrey Dahmer sitting by a railroad track drinking a beer.
Etc.
This is about as entertaining as watching paint dry.
And while dramatizations of actual events may be great in a documentary, what half brain thought it was a good idea to constantly interrupt the storytelling to show long clips of:
Jeffrey Dahmer buying an aquarium fish in a store.
Jeffrey Dahmer eating a hamburger on the bus.
Jeffrey Dahmer sitting by a railroad track drinking a beer.
Etc.
This is about as entertaining as watching paint dry.