In 17th century France a group of nuns described some unsettling visitations at their convent, which developed into a story of possession, political intrigue, and a moment in time that was rife with social tensions.
Research:

SYMHC Classics: COINTELPRO 1
39:12

Behind the Scenes Minis: It's Not Unprecedented
16:46

The Rendition of Anthony Burns, Part 2
43:32