Karen Pirie Season 2 follows Detective Inspector Karen Pirie as she reopens a decades‑old cold case: the 1984 kidnapping of oil heiress Catriona Grant and her two‑year‑old son, Adam. When a body is discovered with links to the original crime, Karen and her team must unravel long‑buried secrets, navigating new leads and complex relationships to uncover what really happened more than forty years ago.