Danny Robins investigates a potential poltergeist haunting in the very first episode of Uncanny Cold Cases, a new series investigating some of the spookiest paranormal events ever documented. The series kicks off with a two-part story that’s been called Britain's most violent ever poltergeist case - The Black Monk of Pontefract.

When the Pritchard family move into 30 East Drive in Pontefract, doors slam, objects fly, and the family quickly realise they're not alone in the house. They call the mischievous entity Mr Nobody. Is something supernatural stalking the Pritchards? Or can the team find a more straightforward explanation?

Presented by Danny Robins

Experts: Evelyn Hollow and Dr Ciaran O’KeeffeStory sections by Joel Morris and Will MacleanResearch by Nancy Bottomley and John WestFilming and editing by Robb LeechEditing and sound design by Charlie Brandon-KingTheme music by Katherine PriddyTheme co-produced by Jennifer Ann KellerIncidental music by Evelyn SykesCommissioning executive: Paula McDonnellCommissioning editor: Rhian RobertsProduced by Simon Barnard and Victoria Lloyd

A Bafflegab and Uncanny Media production for BBC Radio 4