The Keepers A riveting seven-part documentary series, The Keepers tells the story of the unsolved murder of a Baltimore nun and the chilling secrets that have been uncovered decades after her death. Sister Cathy Cesnik was a beloved nun and Catholic high school teacher who went missing in 1969 and, to this day, no one knows who wanted her dead. The ways in which her family and friends are trying to find justice will remind you that the power of sisterhood is stronger than all. Watch it now. Image Source: Netflix