Don't Say a Word

Don't Say a Word is a 2001 American psychological thriller movie starring Michael Douglas, Brittany Murphy and Sean Bean. It was directed by Gary Fleder and is based on the novel Don't Say a Word by Andrew Klavan.
Douglas plays New York psychiatrist Nathan Conrad, whose daughter is kidnapped by gang leader Patrick Koster (Bean) in order to force him to get catatonic post-traumatic stress disorder psychiatric patient Elisabeth Burrows (Brittany Murphy) to tell him a number which only she knows. Kloster wants that number because it will lead him to the whereabouts of a stolen diamond.