When 27-year-old Mary Gough was found dead in her home in Balbriggan in 2001, it looked like a tragic accident. Gardaí were called to what appeared to be a fall down the stairs.

But as investigators examined the scene, small details began to raise doubts, marks that didn’t fit, timelines that didn’t match, and a story that started to change.

In this episode, former Garda forensic detective John Sweetman revisits the case, piece by piece, to uncover how investigators learned that what looked like a household accident was, in fact, something far more sinister.

Presented by John Sweetman

Created by Darren Cleary

Executive Produced by Eoin Brennan

Executive Produced by Ruth Fitzsimons

Produced by Siobhan Walsh

Assistant Produced by Siobhan Maguire

Sound Design and Editing by Neil Kavanagh

Editing support by Ed Smith

Marketing support by Bríd Walsh and Roisin Reilly

Social support by Mark Hayes and Robyn Ree

Episode Written by Darren Cleary

Episode Edited by Eoin Brennan

Artwork and graphics by Eric Rowntree