April 1933. Belfast Gaol. Prisoner 1192, Harold Courtney, is executed for the brutal murder of Minnie Reid. Or was he? Did the right man hang?

Digging deep, journalist Gordon Adair attempts to find out*, because locally, he’s heard a strange tale. Of plots, threats, deceit and cover-up. It’s a trail that takes the investigation across the globe – and of people who, 90 years on, still believe this is a case that shouldn’t be talked about.

Was there a miscarriage of justice? Was justice not done for the young Minnie Reid? And how much of this tale is true?

To unravel it takes Gordon back almost a century, and from rural Northern Ireland to urban melting-pot Australia. Tracking down witnesses like the children who found Minnie’s body in a lonely Armagh lane, and uncovering secret records, maps and letters not seen since 1933, Gordon also consults police, pathology, and capital punishment experts.

The results surprise him. Shining a light on a ‘lost decade’ in Northern Ireland, they uncover a shadowy taboo history that’s rarely explored. Assume Nothing, BBC Northern Ireland’s new podcast strand goes to air before this increasingly unpredictable investigation is concluded.

PRONI documents in the series featured by kind permission of the Deputy Keeper of the Records, Public Record Office of Northern Ireland. (PRONI)