What's scarier than ghost hunting? For Martin, it's meeting Claudia's branch of the Clan Mackenzie for the first time.
When Claudia brings Martin home for Thanksgiving dinner, he gains firsthand experience of how family tensions can affect even the most joyous occasion. Just when it seems Martin has soothed Claudia's overprotective father, her sister Caroline confesses that she's seen a ghostly lady in white, plunging Martin and Claudia into the dark world of the Daniels LaRoche hospital, a mental health facility with a shadowed history. Martin soon finds that there's an evil presence at the old hospital, one so powerful that even he may not be able to vanquish it.
Distracted by family squabbles and the saintly Caroline's increasingly strange behavior, Claudia and Martin have their work cut out to preserve their relationship and get to the bottom of the mystery surrounding the Lady in White.