William Peter Blatty, author of The Exorcist, proved a workmanlike producer/director for 1979's The Ninth Configuration. Army psychiatrist Col. Kane (Stacy Keach) (teetering on the sanity brink himself) tries to minister to the patients in a military mental hospital. The fact that the hospital is located in a brooding old castle is hardly conducive to speedy recoveries. Nor does the mid-film barroom brawl indicate that Kane's approach to mental health is all that workable. Blatty adapted the screenplay for The Ninth Configuration from his own novel Twinkle, Twinkle, Killer Kane (which also served as the film's title during one of its many releases). It is hard to tell if what you're going to see is the director's cut, since there are several versions of this film, running anywhere from 99 to 140 minutes.~ Hal Erickson, All Movie Guide