The House of Exorcism was produced by Alfredo Leone.
Alfredo Leone After the popularity of the film The Exorcist, scenes were added by producer Alfredo Leone and Lamberto Bava which gave the film an exorcism theme and re-released it as The House of Exorcism (Italian: La casa dell'esorcismo) in the United States; this recasts the film as a clone of The Exorcist, with the main character possessed and recounting to the priest who is seeking to save her the story of how she became possessed. 
