You might be under the impression that there's nothing more to be said about the horrendous and gruesome crimes of Ian Brady and Myra Hindley, with countless books, documentaries and television programmes being produced over the years.
Now however, in light of the discovery of some never-before-seen letters, sent to one another during their time in prison, Channel 4 is set to reexamine the case of the Moors Murderers in a brand new three-part documentary set to air on Monday, February 21.
Viewers can also hear from the as-yet-unknown reports of chief witness in the case David Smith, the former boyfriend of Hindley's sister Maureen, who Bradly infamously attempted to turn into a scapegoat for one of his brutal murders.