The Keepers is a haunting crime documentary series that investigates the unsolved murder of Sister Cathy Cesnik, a beloved nun and teacher in Baltimore. The series explores the dark secrets of the Catholic Church, allegations of sexual abuse, and the efforts of two former students to uncover the truth about Sister Cathy's death. As they dig deeper, they uncover a web of corruption, cover-ups, and a potential link to a notorious serial killer. The Keepers is a chilling and thought-provoking series that exposes the dark underbelly of an institution and the resilience of those seeking justice.