The family was in the Victorian era and there was an older daughter who was unmarried and in her 40's and very emotionally distraught, and a younger sister in her 20's that was being possessed by some sort of demon. The possession had been slow, and the younger sister used to be very sweet, but she started snapping off and saying and doing offensive things until it was obvious that the clergy needed to be called.
All the costumes kinda reminded me of the ones in the video for The Perfect Drug - https://youtu.be/sSLqeZzTU8I but the family except for the older daughter were all blondes.
The younger daughter's possession had sent the father into a completely catatonic state of not talking and just drinking. The mother was losing her mind fussing, but the daughter seemed to finally be breaking through her previous moodiness and was the one who arranged for the priest to come to the house.
It wasn't Ronan Harris from VNV Nation, but he spoke what I think were the words to Solitary https://youtu.be/RCv0cd-CLKc to try to expel the demon from the younger sister.
I woke up before the girl got un-possessed, but I hope it went well?