Watch the trailer for new Irish noir thriller Smother Updated / Wednesday, 24 Feb 2021 10:20 Niamh Walsh as Jenny, Dervla Kirwan as Val, Seána Kerslake as Grace, and Gemma Leah Devereux as Anna New noir thriller Smother, starring Dervla Kirwan and Seána Kerslake and filmed in Lahinch, County Clare, debuts om RTÉ One on March 7th and we've got a sneak preview of the new drama for you to watch. Kirwan ( The Stranger, White Dragon) plays family matriarch Val Ahern - a devoted mother who is determined to protect her family and particularly her three daughters Jenny, Anna, and Grace, at any cost.