The first two episodes aired on 19 August 2022. The series is set in Dublin and filmed on location in Ireland. It is based on the Belgian series Clan, which was created by Malin-Sarah Gozin. Apple TV+ renewed the series for a second season on 8 November 2022.
The five Garvey sisters, Eva, Grace, Ursula, Bibi, and Becka, live in present-day Dublin. After Grace's abusive, controlling husband John Paul dies unexpectedly, the sisters find themselves at the centre of a life insurance investigation. The series flips between timelines, one before John Paul's death and another after his death.