Father Brown discovers that a murderer is using Kembleford's new model village to plan their attacks. He also needs to find a new secretary following Mrs McCarthy's departure.
Father Brown is invited to the village of Wedlock to investigate the disappearance of the church warden's son, and a sighting of a legendary giant cat roaming the woods.
The visit of Princess Margaret to Kembleford is jeopardised when a school janitor is found murdered. Can Father Brown save the royal visit from being cancelled?
