A waitress at the Threshold club who claims Father Dennis gave her soul to Luke, the Devil. After a psychiatric commitment, she stays at the rectory, reads about the Unholy demon, and survives the final church confrontation.
Michael provides shelter to Millie despite her unstable claims.
Millie views Luke as an abusive predator and demonic entity.
Millie served as Dennis's confessor and later receives posthumous contact.
Millie and the Housekeeper work together cleaning the parish church.
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