Trama

Bunty, Lady Felicia's niece, is suspected of murder while being looked after by Father Brown.

Lady Felicia's niece Bunty comes to stay, to the delight of Bobby, son of imperious Davina Malmont, though Davina wants to marry him to Joan, the studious daughter of vulgar millionaire Norman Vanderlande. Bunty empathizes with housemaid Ruby - but is the key suspect when Ruby is slain. When Father Brown investigates, he discovers not only a maze beneath the house but a well-kept family secret, which is exploited by Ruby's killer. With the case closed, Lady Felicia departs to join her husband in Africa, entrusting Bunty to the care of Father Brown.—don @ minifie-1

Lady Felicia is about to join her husband, who has been appointed as a colonial governor in Africa - so Father Brown and Mrs. McCarthy will have to take over looking after her mischievous niece Bunty, who has exhausted parental patience and lost her allowance. They are all invited to a party thrown by haughty aristocrat Davina Malmont, who can only hold on to her estate if charming, handsome screw-up son Robert 'Bobby' Malmort gets engaged to Joan, the studious daughter of blunt millionaire Norman Vanderlande. Just after, by giving her a cashmere scarf, Bunty seals her new friendship with the estate's new maid 'Smith' - a 'fallen girl' whom the parish arranged to be employed - the maid is found dead, with the scarf found beside her corpse. Inspector Mallory would rule it suicide by jumping, but Brown spots the wounds don't fit. Brown and Joan venture into the estate's mysterious maze, discovering the truth about the tragic fate of Bobby's kid brother Arthur Malmort - who allegedly had died in an accident - with surprising results for many.—KGF Vissers