The true story of the investigation of the "Zodiac Killer", a serial killer who terrified the San Francisco Bay Area, taunting police with his ciphers and letters. The case becomes an obsession for three men as their lives and careers are built and destroyed by the endless trail of clues.
- Genre: Crime, Drama, Mystery, Thriller
- Studio: Paramount, Phoenix Pictures, Warner Bros. Pictures
- Keyword: california, san francisco, california, killing, journalist, newspaper, 1970s, victim, code, investigation, police, murder, serial killer, crime scene, reporter, whodunit, young man, fourth of july, newspaper article, neo-noir, 1960s, zodiac killer
- Cast: Mark Ruffalo, Jake Gyllenhaal, Robert Downey Jr., Anthony Edwards, Chloë Sevigny, Brian Cox