For the past decade, Hee-soo (Uhm Jung-hwa) has been a bestselling author
but at her peak of fame she is accused of plagiarism and overnight her career
and life are in ruins. She dives into a deep depression for two years but with help
from her friend and publisher, she builds the courage to write again. Hee-soo
drives to a remote cottage in a small town with her daughter, Yun-hee, and
begins to experience strange happenings. Yun-hee talks to a mysterious and
unidentified figure, telling her strange and unusual stories. Desperate for ideas,
Hee-soo writes down these tales from the imaginary friend and turns them into
her comeback bestseller.

Happy to have regained her previous life, Hee-soo is shocked when yet another
accusation of plagiarism rears its head, from a book that was published ten
years ago. To prove her innocence, Hee-soo must begin a mysterious journey to
expose the sinister truth behind her misfortunes.