Based on the true story of a serial killer who terrorized the San Francisco Bay Area and taunted authorities with his ciphers and letters, Zodiac is the critically acclaimed psychological thriller from David Fincher, director of Fight Club and Panic Room. For four men – two newspaper reporters (Jake Gyllenhaal and Robert Downey Jr.) and two homicide detectives (Mark Ruffalo and Anthony Edwards) -- hunting down the hunter would become an obsession that would turn them into ghosts of their former selves, their lives built and destroyed by the killer's endless trail of clues. Based on the book by Robert Graysmith.