You can go ahead and mark the weekend of May 19 off in your calendars because Netflix’s new true crime series The Keepers premieres, but will it be as big as Making a Murderer?

The Keepers is about the 1969 murder of Sister Cathy Cesnik in Baltimore. Sister Cathy went missing in November of 1969, and her body was found in early 1970, but who would want her dead?

From the Huffington Post:

In recent years, alumnae of Cesnik’s employer, Archbishop Keough High School, have gathered to comb over the facts of Cesnik’s case and piece together potential clues. They believe that the nun might’ve been killed because she was threatening to unearth information about a prostitution ring led by the school’s chaplain — beliefs supported by two women’s claims that the chaplain had raped them.

A new Netflix series will look into the mystery and possible coverup surrounding Cesnik’s murder. The trailer, released Wednesday, hints at police, city and religious official corruption, all ingredients for a captivating true crime tale. Based on the success of Netflix’s previous true crime offerings — both the 10-part series “Making a Murderer” and the documentary “Amanda Knox,” for example — this one seems like it will be just as electrifying.

Tune in when it premiers May 19 on Netflix!