New comedy-drama These Sacred Vows is written and directed by award-winning Irish screenwriter John Butler. The series from RTÉ, in association with Banijay Rights and Fís Éireann/Screen Ireland, debuts on RTÉ One and RTÉ Player on Sunday 1st February 2026.
The comedy-drama opens the morning after an Irish wedding on a Spanish island, when the body of a priest is found floating face-down in the swimming pool of the young guests’ villa. Over the course of six episodes, the action jumps back in time to revisit the key events of a wild previous week, each from the perspective of a different character.
These Sacred Vows is produced by Rob Walpole and Rebecca O’Flanagan for Treasure Entertainment. Executive Producers are RTÉ’s Head of Drama David Crean and RTÉ’s Director of Acquisitions and Co-Productions Dermot Horan; Cathy Payne and Simon Cox for Banijay Rights and Kate McColgan for Fís Éireann/Screen Ireland.
These Sacred Vows is one of nine drama productions for RTÉ filmed in 2025 creating 142 hours of high-quality, homegrown storytelling across screens in Ireland. These series are part of RTÉ’s commitment to great local drama.
List of key cast:
Tom Vaughan-Lawlor (Love/Hate, Avengers: Infinity War/Endgame) as Fr. Vincent, mother-of-the-bride Sandra played byJustine Mitchell (Derry Girls, Smother), Jason O’Mara (Agents of SHIELD, The Man In The High Castle) as father-of-the-bride Jerry and India Mullen (Normal People, Say Nothing) as wedding party guest Ava. The ensemble cast also includes Adam John Richardson (The Dry), Aaron Heffernan (Brassic), Mark O’Halloran (Adam & Paul, Garage), Aoife Hinds (Dune Prophecy), comedians Shane Daniel Byrne and Catherine Bohart and introducing Isolt Caffrey as Karen.
EPISODE 1 – VINCENT
Short Synopsis
At an Irish wedding in Tenerife, Father Vincent arrives to officiate it, unaware that his life is about to unravel.
Medium Synopsis
Father Vincent arrives in Tenerife to officiate the wedding of the daughter of his old friends, Sandra and Jerry. Lodged unexpectedly with the bride’s wild friends, he’s mocked, overheated, and ignored. He comes into conflict with local priest Father Sandoval, but finds a friend in wedding guest Ava. Everything goes awry however when Sandra reveals a secret that causes him to reflect on his life.
