Se7en
This film is a 7ery, 7ery, 7ery fantastic film which led to a 7ivid 7iewing experience.
Yeah, jokes aside, this film has basically everything that you would want from a serial killer film (except that theres only 1 kill scene).
Theres great acting (especially from Kevin Spacey as John Doe), great kills (even if you only see the aftermath), a great story, great quotes and a fantastic villain (who is one of my favourite antagonists ever).
I had watched this film quite late so my focus wasnt 100% so I might have to rewatch it but even in that state, I thought this was fantastic.