In rural Ireland, amateur historian Catherine Corless begins researching a former institution for unmarried mothers and their children in Tuam, County Galway and uncovers a shocking hidden history of neglect and loss. Faced with the deafening silence of church and state, she embarks on a campaign for justice, confronting deep wounds that continue to shape Ireland today. BAFTA award-winning Monica Dolan plays the real-life Catherine Corless, with Andrew Bennett playing her husband Aidan and Ian McElhinney playing real-life survivor of the home, PJ Haverty.