Zodiac (2007)

A serial killer in San Francisco taunts the police with letters and cryptic messages. Detectives, newspaper reporters, the four people who swore to catch this killer are the main characters of the film. The four obsessed men, following the footprints left behind by the killer, unfortunately, actually follow the steps of the killer. When this killer appears again after years of absence, it will become a nightmare not only for the people he killed but for the whole city.