ST. LOUIS (KSDk) -- Many consider the 1973 film "The Exorcist" the scariest movie of all time. Wednesday is the 40th anniversary of the film's release.
If the mere thought of the famous flick gives you the chills, consider this: It's directly based on a true incident that happened in St. Louis.
The real story that inspired the famous book and movie happened in 1949. It began in Maryland, ended in St. Louis, and involved several Jesuits from Saint Louis University.
Father Raymond J. Bishop, S.J. kept a day-by-day account of the exorcism. Click here to read the diary.
When Pat McGonigle's series on the history of the exorcism in St. Louis was airing last fall, he received a phone call from a woman that he can't forget. Read Pat's blog about what the woman said that still gives him chills months later.
Pat McGonigle's stories about the SLU exorcism:
SLU expert talks about exorcism on campus
What became of the boy in the exorcism?
SLU exorcism: Where did it happen
SLU exorcism: The diary behind the event
SLU exorcism: Should you be scared of Ouija boards?