Deranged serial killer Old Lady Spinster
Old Lady Spinster was a villainess from "Dead and Breakfast," the first half of episode 2.02 of Creepshow (airdate April 7, 2021). She was the grandmother of Pam and Sam Spinster.
As the episode revealed, Old Lady Spinster ran and owned a bed and breakfast that was run by Pam and Sam in the episode's events. However, as the story also revealed, Old Lady Spinster turned heel and became a deranged serial killer, with her victims being any guests who violated her rules. A flashback scene showed the maniacal villainess killing one of her victims with an axe, while Pam (who had turned the bed and breakfast into the "Spinster Murder House") was telling the story of her grandmother to her guests.
The episode's progression saw the siblings invite Morgue, an influencer, to the house to boost their business, only for Morgue to mention that no bodies were ever found, This originally caused any doubt that Old Lady Spinster was a serial killer, but at the end of the episode, a collection of human remains were found in a secret trapdoor, which confirmed Old Lady Spinster's murderous status. Regarding the villainess, Pam confirmed that her evil grandmother passed away in a retirement home.