"It was a long sprawling type of film.The serial murders were not made much of in themselves, almost embarrasingly mentioned. It was the effect they had on these several investigators. This film was almost academically unsensationalist to the nth degree. It was good the way in which it seemed to show you documentation, handwriting samples, his coded messages and encryptograms, as if you were looking over their shoulders. The main character roles were played by effective actors(Ruffalo,Gyllenhall and Downey Junior). However the film all but states that there was a major suspect who was not tried for lack of evidence. If this film led to them reopening the case then it would not have been in vain. I respect Fincher as a film maker, however could this not be seen as a vainglorious exercise. Something was missing, a kind of heat and urgency and result."