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, Sir Charles Hakeworth is murdered by a masked figure. With the estate locked down and a killer in the midst Father Brown and the gang must find the real perpetrator.
Elenco: Mark Williams , Sorcha Cusack , John Burton , Jack Deam , Nancy Carroll , Emer Kenny , Alex Price , Tom Chambers , Hugo Speer .