Zodiac was directed by David Fincher, stars Jake Gyllenhall, Robert Downey Junior and Mark Ruffalo and is based on the journalists and detectives whoose's lifes were affected by the Zodiac killer, a mysterious person who went on a killing streak during the late 60's/early 70's and frequently mailed threatening letters to police and newspaper stations.
Fincher does a remarkable job directing this movie (really with any movie he directs) as he puts into this a tremendous amount of dedication and detail, making sure everything is on point going as far as recreating the murder victims costumes and the entire crime scene as meticulously as he could. This adds an extra layer of realism to it, making us feel like we are back in those times witnessing it first hand. If you haven't seen Zodiac, what I'm about to say may be considered spoilery so be careful but this is a fascinating movie for me because in most detective/crime stories all the evidence winds up eventually making sense and giving us some sort of satisfying closure but with Zodiac this doesn't really happen. There are a lot of conflicting things that don't make sense, pieces that don't fit together, contradictory plot points which frustrates obviously the characters in the movie but the audience as well. This ends up giving the story a bigger sense of mystery, making me become even more obsessed about it. All in all, this is a great movie, with very solid acting and amazing direction that just creeps the fuck out of me due to its enigmatic and puzzling nature.