On the day of her execution, Katherine Corven is unexpectedly exonerated and released, much to Father Brown, Mrs McCarthy and Bunty's dismay. Waiting outside Sonning Prison, Robin and Eddie from the Kembleford Gazette, push their way through the crowd of reporters to hear Katherine say that those who wronged her will answer to God... Father Brown later discovers that the Corven's old cleaner confessed to murdering Katherine's husband, explaining her sudden release, but Father Brown is sceptical of this new information. Katherine's new intention to become a nun raises more alarm bells with Father Brown, who sidesteps Eddie's questioning on the case and heads over to speak to Katherine's former prison officer Frances. When he arrives he finds her in the position Katherine escaped from; hanging with a noose around her neck...
