Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Yorkshire, 1974. Britain is in recession, the oil crisis and black outs loom large. The Maynard family move into their dream house, only to find a "presence" already living there. Len, Jenny and their daughter Sally must struggle to keep their already-fragile family together as they are attacked by poltergeists. Soon it becomes apparent that Sally is their main focus of attention. The house becomes a living nightmare. They must exorcise the evil spirits for them to survive.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.

Poltergeists attack a family in Yorkshire during the 1974 nationwide blackouts.