S01E08 - A Simple Sacrifice Part 2

New evidence comes to light in the case of Annie Keel, a woman who was tried and convicted twenty-five years ago of a double murder when both her husband and a neighbour's son were killed in extreme circumstances. However, her imprisonment was based solely on her own confession, as no evidence was recovered from the scene to suggest that she may have been responsible. When new evidence casts doubt upon her version of her events, Boyd decides to challenge the validity of the conviction, and decides to investigate further in order to discover what really happened that night. Suspecting that her son may have been present at the time of the murders, Boyd begins to wonder if Annie is covering for somebody else, suspecting that they may have been responsible. When his theory is proven right, Annie re-unites with her long lost son, who she believed to be responsible, but was in fact, simply a witness, and the hunt for the real killer continues. As Boyd's evidence leads to a prime suspect, Annie is forced to recall the events on the night of the murders. Featuring Simon Kunz as DAC Ralph Christie, Harriet Walter as Annie Keel, Cal MacAninch as Alex Bryson / Sam Keel, Lynda Bellingham as Mary Mantel, Nicholas Woodeson as Reese Dickson and Noel Clarke as Harry (police constable in archives).