Danny Robins and the team unpack a terrifying mystery that has remained unsolved for almost 200 years - Spring-heeled Jack.
The demonic character stalked the streets of Victorian England at night, reportedly slashing his victims with sharp claws, breathing blue-white fire, and evading the police by making impossible leaps over rooftops.
But was he a real person, a supernatural entity, or the product of mass hysteria?
Presented by Danny Robins
Experts: Evelyn Hollow and Dr Ciaran O’Keeffe
Story sections by Tom Neenan
Research by Nancy Bottomley and John West
Filming and editing by Robb Leech
Editing and sound design by Charlie Brandon-King
Theme music by Katherine Priddy
Theme co-produced by Jennifer Ann Keller
Incidental music by Evelyn Sykes
Commissioning executive: Paula McDonnell
Commissioning editor: Rhian Roberts
Produced by Simon Barnard and Victoria Lloyd
A Bafflegab and Uncanny Media production for BBC Radio 4