The Menace of Mephistopheles

Goodfellow turns to Father Brown when he witnesses Mallory frame an innocent man.

3 Kembleford residents find threatening notes with a possible religious connection. When one of them appears to have spontaneously combusted, the Father looks for a more rational explanation.

The Father investigates when a child murderer is released from prison, then found murdered soon after. The victim's family are prime suspects as they had been desperate for the murderer to tell them where he hid the body.

When a troubled soul from the past returns, Father Brown must investigate the new chapter of the Church of Apollo.

Father Brown joins forces with Flambeau to search for a lost treasure in a 15th-century castle.

Father Brown finds his position under threat when he clashes with an influential new parishioner.

When Father Brown visits Chummy's holiday camp, it doesn't take long for someone to die-de-die.

Bunty reunites with Father Brown to uncover a dark secret at the local girls' borstal.

Father Brown investigates staff at the local health spa when an ex-employee is found murdered.

Lady Felicia and her husband Monty host a lavish masked ball counting down to 1954. However, their plans are ruined when the Minster of Defence is murdered by a masked figure. With the estate locked down and a killer in the midst.