The haunting of Maddy Clare (2012)

"In 1920s England, a young woman of limited means and even less experience confronts the ghost of a mysterious serving maid.... Sarah Piper's lonely threadbare existence changes when her temporary agency sends her to assist a ghost hunter. Alistair Gellis--rich, handsome, scarred by World War I, and obsessed by ghosts--has been summoned to investigate the spirit of the nineteen-year-old maid Maddy Clare, who is said to haunt the barn where she committed suicide. Maddy hated men in life, and she will not speak to them in death. But Sarah is unprepared to go alone into a haunted barn looking for the truth. She's even less prepared for the arrival of Alistair's associate, rough, unsettling Matthew Ryder, also a veteran of the trenches, whose scars go deeper than Sarah can reach. Soon, Sarah is caught up in a desperate struggle. For Maddy's ghost is no hoax--she's real, she's angry, and she has powers that defy all reason. Can Sarah and Matthew discover who Maddy was, where she came from, and what is driving her desire for vengeance...before she destroys them all?"--