Returning guest Ron Felber's latest research is the product of half a century's work. It's the chilling "possession" case of Clara Fowler that has many parallels with "The Exorcist". Ron Felber was handed the story by the person behind that famous film. His research is detailed in his new book "The Unwelcome - The Curious Case Of Clara Fowler". How can a young woman be so totally taken over by a fearsome force of evil?
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