Sequel focuses on the evil god of wind. This movie is very eerie and will make make your skin crawl. Also explains why the little girl that Linda Blair portrays was picked to be possessed.
About Exorcist 2: The Heretic (1977)
Starring: Max von Sydow, James Earl Jones, Linda Blair, Ned Beatty, Kitty Winn, Richard Burton, Louise Fletcher, Belinda Beatty, Joey Green, Hank Garrett, Shane Butterworth, Joely Adams, Robert Lussier, Charles Parks, Paul Henreid, Richard Paul, George Skaff, Kelley Karel, Rose Portillo, Karen Knapp, Barbara Cason, Dana Plato, Tiffany Kinney, Fiseha Dimetros, Ken Renard, Lorry Goldman, Bill Grant
Director: John Boorman