The story of the biggest prison smuggling plot ever busted in the UK - and the love story at the heart of it.

Journalist Amber Haque untangles what happens when mental health nurse Amy Hatfield meets convicted criminal Joe Whittingham. Her investigation leads into a world of blackmail and manipulation, where you never quite know who to trust or who's watching.

Credits Host: Amber Haque Producer: Becca Bryers Sound design: Ivor Manley and Andy Fell Story and music consultant: Emma Weatherill Development by: Rob Byrne, Rhiannon Nevada and Emma Shaw Production management: Gaelan Davis-Connolly and Debbie Wadell Executive producer: Joe Kent Commissioning producer: Sam Proffitt Commissioning executive: Louise Kattenhorn and Lorraine Okuefuna Commissioning editor: Richard Maddock A BBC Studios production for BBC Sounds and BBC Radio 5 Live