Karen Pirie - Episode Guide

When a historic murder case in St Andrews becomes the subject of a provocative true crime podcast, fearless detective Karen Pirie is tasked with heading up the cold case review.

With suspects under attack, Karen's cold case review becomes a live investigation. Is someone out for revenge for Rosie's death, or trying to ensure that the truth remains hidden?

Karen is forced to confront a version of the truth she never thought possible - with everything at stake, will she finally find Rosie's killer and achieve justice after 25 years?

Amid societal unrest in 1984, oil heiress Catriona Grant and her son Adam are kidnapped at gunpoint, but after sending two ransom notes the culprits unexpectedly fall silent and the pair are never seen again. When a man's body is discovered 40 years later in a quarry with a piece of evidence connected to the case, DI Karen Pirie is tasked with reopening the case with the first new lead in decades.

The team are closer than ever to the truth as Karen digs into Cat's life and disappearance, but a shock discovery changes the course of the investigation.

The case takes a dramatic turn and the pressure from all sides increases as Karen races to track down those responsible for the kidnap before the truth is buried.