Two blokes sit in prisons chatting with serial killers and somehow Fincher made that absolutely gripping.
Fun fact: The real FBI agent who inspired the show also inspired Jack Crawford in The Silence of the Lambs.
Sleeps twenty hours a day and still looks absolutely knackered, which is honestly quite relatable.
Fun fact: Their fingerprints are virtually indistinguishable from human ones, even under an electron microscope.