True crime documentaries have surged in popularity over the years, captivating audiences with their gripping reenactments, chilling interviews, and haunting revelations. Netflix, as a vast repository of entertainment, presents a treasure trove of such documentaries that delve deep into some of the most disturbing and mysterious cases ever recorded. For true crime enthusiasts, this genre is not just about morbid curiosity but about seeking justice, understanding human nature, and the psychological underpinnings of crime. Here are the 20 best true crime documentaries on Netflix that will have you on the edge of your seat:

1. Making a Murderer

2. The Keepers

3. Amanda Knox

4. The Staircase

5. Crime Scene: The Vanishing at the Cecil Hotel

6. I Am a Killer

7. American Murder: The Family Next Door

8. Abducted in Plain Sight

9. The Confession Tapes

10. Evil Genius

11. Wild Wild Country

12. Mindhunter (though technically a series based on real events)

13. The Trials of Gabriel Fernandez

14. Conversations with a Killer: The Ted Bundy Tapes

15. Don’t Fk with Cats: Hunting an Internet Killer

16. Murder Among the Mormons

17. Night Stalker: The Hunt for a Serial Killer

18. Unsolved Mysteries (2020 reboot)

19. The Sons of Sam: A Descent into Darkness

20. Jeffrey Epstein: Filthy Rich

Each documentary offers an immersive look into crimes that range from personal vendettas to systematic misconduct, showcasing not only the intricacies of each case but also the broader social implications they reflect upon our societies today.

Remember that availability can vary by location and over time; these titles are all well-regarded and widely discussed examples of true crime content on Netflix as of my knowledge cutoff in early 2023.