Two movies about serial killers which are considered masterpieces .
Their strengths? the bad guy of course... but also the relationship between the bad guy and the 'good' guy... and the empathy you can have towards the bad, even the fascination/admiration you feel.
I'm fascinated by Hannibal Lecter, John Doe, Kaiser Sauze... Bad guys are interesting because they are so human and so far from human vertues...
And they put into question what's good and what's bad...
Hannibal is smart, has a high level of education, knows how human beings act. That's his biggest strength and why he's so terrifying. The knowledge , the search for the absolute knowledge, the truth... coming so close to what the society wants from you and totally lose his mind