Prophecy centers entirely around the origins of the Bene Gesserit, known only as "the Sisterhood" in the show. However, there's a very simple reason for that. "The Sisterhood at its inception is not called the Bene Gesserit,

Emily Watson, Olivia Williams and Mark Strong star in a visually grand six-part series, which takes place before the events of Denis Villeneuve’s blockbusters and focuses on a scheming drama surrounding the Bene Gesserit.

A long-gestating prequel, about the women who seek to guide a galaxy, is splashy, somber and insufficiently spicy.