When the Lights Went Out: premiere, poster, trailer, synopsis

Pat Holden's retro poltergeist feature When the Lights Went Out had its world premiere at the Rotterdam Film Festival yesterday. You can see a bunch of stills on the festival site. Here's the poster and, via Quiet Earth, the trailer.

Synopsis
1974, based on a true story. The Maynard Family move into their dream house, only to find a “presence” already living there. Based on true events, When the Lights Went Out is set in 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 (Steve Waddington), Jenny (Kate Ashfield) and their daughter Sally (Tasha Connor) 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.