The story of the investigation and trial of the infamous Nevin murder, told by the Garda superintendent Pat Flynn who was in charge of the case, with details of his efforts to publicize reports on Judge Donnacha O'Buachalla, investigated for his preferential treatment of Catherine Nevin.

The trial and conviction of Catherine Nevin for her role in the murder of her husband Tom, monopolized the attention of Ireland for weeks. The allegations of contract killers, extra-marital affairs, fraud, and involvement with Republican organizations seemed better suited to the big screen than a small town pub. Pat Flynn, who led the investigation against Catherine, describes how holes in her story were found, along with evidence of how she had been plotting for years to have her husband killed. Although Flynn led several murder investigations in his career, none had the notoriety of the Nevin case.