The Moors Murder Code

"The Moors Murders were carried out by Ian Brady and Myra Hindley between July 1963 and October 1965, in and around Manchester, England. The victims were five children aged between 10 and 17. This documentary is an investigation into a collection of photographs owned by murderers Ian Brady and Myra Hindley that police claimed may have led to the identification of the sites of their victims' graves."