A new cold case for DCI Brendan Moran coincides with the unexpected reappearance of a dangerous adversary.
As Moran grapples with an ever-changing work culture and begins to get to grips with the forty-year old murder of a young RAF aircraftswoman, an unexpected complication arises in his personal life that threatens to sabotage a promising relationship before it even begins. Could his new friend really be involved in the shady financial dealings of a cold case murder victim?
With this uncertainty playing on his mind, Moran throws himself into the new investigation, but as he digs deeper it becomes clear that the original case was sloppily handled, the interviews poorly conducted and critical evidence overlooked. Under the watchful eye of a newly-appointed Crime Investigations Manager, the team begin the painstaking process of tracing the original persons of interest.
Progress, however, is glacial, and so, when presented with incontrovertible proof that their progress is being monitored with alarming accuracy by someone who seems to always be one step ahead of the official investigation, Moran begins to wonder if he can make an arrest before the perpetrator falls into the hands of an antagonist with a very different idea of justice…