This is the tale of two very close sisters whose traumatic childhood, societal structure, and perhaps a case of Folie à Deux led to one of the most gruesome murders in France's history.

Thank you to my sources:

• Allthatsinteresting.com “The Gruesome Case Of The Papin Sisters And The Murder Trial That Divided 1930’s France” -All That’s Interesting
• Historicmysteries.com “Papin Sisters: Shocking Housemaids’ Crime That Shook France” -Kimberly Lin
• Alittlebithuman.com “The Gruesome Case of the Murderous Maids: The Story of the Papin Sisters” -Joseph Sherwood
• Thevintagenews.com “The Papin Sisters and the murder case that still haunts France after more than 80 years”  -Nikola Budanovic
• Murderpedia.org “The Papin Sisters” -Rachel Edwards and Keith Reader