30 Documentaries to Watch After You Finish "The Staircase"

If you like a crime with a long list of theories, "The Keepers" is another docuseries that will keep you on the edge of your seat. It's a seven-episode series that explores the unsolved murder of the nun Sister Cathy Cesnik. Several suspects are presented, but the answer to who killed Sister Cathy remains, and her killer is still free.