RTÉ ONE · To Be Determined

These Sacred Vows

Drama, Comedy · 2026 · Rated 5.5/10

Last aired: S1 E6, The Wedding · 2026-03-08

These Sacred Vows series opens the morning after the wedding, 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.

Cast

Tom Vaughan-Lawlor Fr. Vincent O'Keefe

Justine Mitchell Sandra Byrne

Jason O'Mara Jerry Byrne

India Mullen Ava

Adam John Richardson Cormac Kennedy

Aoife Hinds Margot

Aaron Heffernan Aaron

Tom Hanson Felix

Season 1

E1 Vincent 2026-02-01 · 60 min At an Irish wedding in Tenerife, Father Vincent arrives to officiate it, unaware that his life is about to unravel.

E2 Cormac 2026-02-08 · 60 min As Cormac deals with a recent trauma, he develops a secret affair with one of the other wedding guests.

E3 Sandra 2026-02-15 · 60 min Sandra searches for meaning in her life while becoming suspicious of Jerry.

E4 Ava 2026-02-22 · 60 min Ava tries to manage everyone else's problems while hiding a medical diagnosis from her boyfriend.

E5 Elodie 2026-03-01 · 60 min Elodie juggles the personal issues of her host family, an issue with her mum back home and an interaction with an older wedding guest that leaves her shaken

E6 The Wedding 2026-03-08 · 60 min As the happy couple takes their vows, all the secrets of the previous week bubble up to the surface.

TV listings and show data from TVmaze.