When the Lights Went Out (2012)

In 1974, Len and Jenny Maynard (Steven Waddington and Kate Ashfield) move into a new home in Yorkshire, where their 13-year-old daughter Sally is haunted by the ghost of a young girl and the demonic ghost of a monk. Sally's history teacher, Mr Price (Martin Compston), learns that the family is haunted by the spirit of a young girl who was murdered in a forest, and informs Len. Sally's parents seek out the assistance of a paranormal specialist and a local priest. The specialist is able to make contact with the spirit but during the session, the group is attacked by it, and the specialist is unable to remove the spirits from their house.

Len and his friend, Brian (Craig Parkinson), convince Father Clifton (Gary Lewis) to perform an exorcism on their house. He initially refuses, citing lack of permission from the church, but they blackmail him by showing photos of Clifton engaging in an illicit affair with his housekeeper, Mrs Blithe. Clifton agrees and explains that the monk, while alive, preyed on young, uneducated girls in the neighbourhood and cut off their tongues so that they could not expose him. He killed the young girl in the forest, as she was educated, and could have exposed his deeds by writing about it. After the incident, the monk was secretly tried, hanged, and buried, in order to preserve the church's honour. They proceed with the exorcism at Len's house; the spirit violently resists but Clifton manages to drive it out.

The family returns to normal life, but one night, the spirit returns and attacks Sally, attempting to hang her. Len and Jenny try to save her but the spirit knocks them out. Sally then throws the young girl's locket into the electric heater, causing a fire. The young girl's spirit appears and confronts the evil monk's spirit, which is driven from the house. Following the incident, the family remain in the house, though Sally never enters her bedroom again.