When an old foe tells him that she has arranged the death of her former lover, Father Brown soon finds himself blamed for the murder.

When Mrs McCarthy takes over the running of the mobile library, Father Brown discovers a shocking secret lurking among the bookshelves.

Fader Brown kämpar för att skydda sina nära och kära när hans gamla nemesis Katherine Corven oväntat släpps från fängelset, med siktet inställt på hämnd.

When Father Brown and Mallory go missing, it's up to the gang to save them from a man hell-bent on revenge.

Sid returns to Kembleford to ask his old family to help save his new one.