Grieving the death of her father, teenager Vesper and her mother Eva seek a fresh start at the eerie Hellebore House. While Eva is determined to transform the dilapidated mansion into a charming Bed and Breakfast, Vesper senses a sinister presence stalking her every move. Ignored by her preoccupied mother and alarmed by warnings from her classmates about the house's dark and violent past, Vesper soon comes face-to-face with Ambrose, a vengeful ghost bent on wreaking havoc.

They strike a deal: Vesper will help him remember his past in exchange for leaving her alone. 

As she navigates friends, family, and falling for the wrong boy and a dead boy, will Vesper be able to escape the purgatory of her own making? And does Ambrose truly deserve to be stuck in his?