In a final bonus episode, Danny takes one last deep dive into the investigation, as he explores more of your theories, examines some of the most puzzling moments in the case, and puts your questions to Shirley.

There are still some surprising revelations in store as Danny uncovers new witnesses to the strange events at 63 Wycliffe Road. What really happened to Shirley and her family 65 years ago?

Written and presented by Danny Robins, starring Dafne Keen (His Dark Materials), Toby Jones (Detectorists), Burn Gorman (Torchwood) and Alice Lowe (Sightseers), with original theme music by Mercury-nominated Nadine Shah and Ben Hillier, this gripping series interweaves a chilling supernatural thriller set in 1950s London with a fascinating modern-day investigation into Britain’s strangest ever haunting – a mystery unsolved… until now.

Cast:

Shirley Hitchings……..Dafne KeenHarold Chibbett………Toby JonesWally Hitchings……..Burn GormanKitty Hitchings……….Alice LoweEthel Hitchings……….Sorcha CusackJoyce Lewis………..Miranda Raison

Written and presented by Danny RobinsExperts: Ciaran O’Keeffe, Evelyn Hollow and Deborah HydeSound Designer: Charlie Brandon-KingMusic: Evelyn SykesTheme Music by Nadine Shah and Ben HillierProduced by Danny Robins and Simon Barnard

Consultant: Alan MurdieWith thanks to James Clark, co-author of 'The Poltergeist Prince of London'

A Bafflegab Production for BBC Radio 4