This is the actual site of an exorcism, the event the movie The Exorcist is based on. The original building was torn down some years ago. The exorcism was performed on a young (perhaps 11) year old boy. After a vision of St. Michael the spirit was vanquished. The site is part of the parking lot now. It has a reoccurring crack in the pavement directly under the room the exorcism was held in. On a side note, the boy was transferred back and forth from Alexian Bros to White house estates (A catholic retreat).