This is the case about the Gertrude Baniszewski, the Torture Mother, & her abuse towards Sylvia Likens in 1965.

https://harrisons.medium.com/the-story-of-the-torture-mother-also-known-as-gertrude-baniszewski-cd9e08cbc921

https://murderpedia.org/female.B/b/baniszewski.htm

https://allthatsinteresting.com/sylvia-likens-gertrude-baniszewski