Father Brown Season 5

The Duke of Fromejohn Langton arrives at Montague Hall for Lady Felicia's Yule Ball with his wife, their child born after childbirth complications, a domineering nanny, nurse and valet. At night, the baby is taken from his crib. When his secret wife arrives, Detective Inspector Mallory becomes suspicious of the valet's inner workings, while Brown is more interested in having a baby in an unmarried mother's home. Mrs McCarthy, under pressure from the diocese to provide a proper Christmas service for the Duke, is unexpectedly helped by a homeless person she finds in the confessional.