Bully director Vivian Wolsey is murdered on set while shooting vampire horror B-film 'The Demon Brides' in a a Kembleford manor. he had made many enemies, including his wife Bebe Fontaine, her rising double Paulette Swain, her lover brilliant scenarist Billy Neville whom he refuses to release from contract to accept a Hollywood offer, and star Rex Bishop, who only accepted the lead under blackmail. Father Brown proves his talents to new detective inspector Mallory by unraveling all motives and opportunities.
—KGF Vissers