Movie · 1995 · HBO
Is Citizen X based on a book?
Quick answer
Yes. Citizen X is based on the book The Killer Department by Robert Cullen (1993).
The movie was released in 1995 on HBO.
The book behind Citizen X
The Killer Department
by Robert Cullen · first published 1993
1993 non-fiction work by Robert Cullen.
Common questions
Is Citizen X based on a book?
Yes. Citizen X is based on the book The Killer Department by Robert Cullen (1993).
Who wrote the book Citizen X is based on?
The Killer Department was written by Robert Cullen and first published in 1993.
Should I read the book before watching?
If you like knowing the full story and characters first, read The Killer Department before you watch. Adaptations often change or cut plotlines, so the book is a different experience even if you've seen the movie.