How did Myra Hindley and Ian Brady go from initial attraction, dating and falling in love to jointly plotting the abduction, rape, torture and murder of young children?

The case of Hall and Kitto is perhaps the most incredible crime story you’ve never heard off. It includes elaborate cons, daring jewel thefts and five brutal murders – all committed by flamboyant fake butler Roy Hall and his accomplice Michael Kitto. Mark goes in seach of some sense amongst the madness.

Crime novelist Mark Billingham looks at the case of copycat Bonnie and Clyde duo Lee Whiteley and Debbie Taylor, who precipitated a series of gratuitous murders