David Fincher directs this thriller based on actual case files from the notorious San Francisco Bay Area murders of the 1970s. As the serial killer known as Zodiac taunts the police with letters and cryptic clues, reporters and investigators become increasingly obsessed with discovering the murderer´s identity as the cat and mouse game impacts their professional and personal lives. The cast includes Jake Gyllenhaal, Robert Downey Jr. and Mark Ruffalo.