Few things are more haunting than an unloved lover. Few things are more horrendous than an unloving beloved.
The ghost that is an unloved lover is but the victim in the unwilling sights of the unloving beloved.
They strive to embrace and exorcise each other turn after turn in the hallways of memory. But to no avail. For every incantation of healing is at once a hex perpetuating the ghost's harrowing imprisonment in its own desires.
A castle of a life is thus haunted by the very victim seeking restitution at the hands of the killer fighting to ease the ghost's pain.
I hope to work this concept into a short screenplay. I should like to call it "Few Things".