Nick Murphy's 1920s-set horror-thriller that follows ghost-debunker Florence Cathcart as she is called to a boys' boarding school to rid the place of ghosts only to find her beliefs shaken by the spooky goings on.
Rebecca Hall plays Cathcart while Dominic West and Imelda Staunton both appear as employees of the school.
The majority of the shoot was completed on location in the Edinburgh city region.
Filming took place at a house in Earlston in the Scottish Borders, the wonderful stately homes of Gosford and Manderston as well as St Bernards Crescent in Edinburgh.