1920s England. Sarah Piper's lonely, threadbare existence changes when her temporary agency sends her to assist an obsessed ghost hunter. Alistair Gellis-rich, handsome, and scarred by World War I-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 confront an angry ghost-real or imagined-on her own. 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. Now, Sarah and Matthew must discover who Maddy was, where she came from, and what is driving her desire for vengeance-before she destroys them all....