When eighteen-year-old Winter McCall is offered a chance to leave her life of poverty behind on the streets of London, she reluctantly accepts, and moves to a remote part of the south west of England. Here she takes up the job as housekeeper to the young and handsome, yet mysterious, Thaddeus Blake.
Warned that he has some curious habits, Winter soon realises that not all is as it firsts appears at the remote mansion where she now lives and works. Blind to the real danger that she is in, Winter finds herself becoming attracted to Thaddeus.
With nowhere to run and no one to turn to, she slowly succumbs to his strange requests. But none of them are as strange as his requests for her to stand each night in the moonlight.