Family drama meets thriller in this gripping series about deeply buried secrets and their unintended consequences. In the aftermath of her husband's tragic death, Val Ahern (Dervla Kirwan) investigates what might have happened in the hours after he caused chaos at her birthday party by announcing their planned break up. Re-examining the life of the man she was married to for 30 years, Val explores Denis's complex and damaged relationships with his daughters, step-daughter and brother. The deeper Val delves into previously hidden family secrets, the more she realises how much Denis's controlling, manipulative behaviour affected each member of her family. And she faces the shocking realisation that one of them might have been driven to murder.