- Dr. H.H. Holmes & the “Murder Castle” 5 February 2021
- Herbert Baumeister & the Mannequins 8 May 2021
- Israel Keyes & His Murder Kits 12 March 2021
- Joanna Dennehy & Her Lust for Blood 21 May 2021
- Serial Killer vs. Reality TV Star 12 February 2021
- UNSOLVED: The Alphabet Murders 26 February 2021