Father Brown is skeptical when a parishioner believes she's being haunted by her sister who went missing years ago. However, when she herself vanishes, he must investigate both disappearances.
A day out at a local hill climb track ends with one of the drivers killed in a car crash. When Father Brown will not stop investigating, an infuriated Sullivan resolves to put an end to his meddling for good.
Soon after his poetry recital, Leonard Quinton is found hanging in the conservatory. When Father Brown realizes that he could not have committed suicide, the search begins for a murderer.
When convicted killer Violet is given a temporary reprieve from the gallows, she begs Father Brown to prove her innocence. With only three days in hand, can he find the real culprit before it's too late?
Father Brown finds himself immobilized with a broken leg when a member of Kembleford's WI dies in mysterious circumstances. Can he crack the case armed only with a telescope and the gang to help?
The grand opening of Pryde Castle ends in disaster when a guide is struck by an arrow. Contrary to Inspector Sullivan, Father Brown becomes convinced that the motive lies buried in the family's past.
When his priceless Blue Cross is targeted by the infamous criminal Flambeau, Father Brown takes the initiative to try and save his soul. But is he walking into a trap?