A girl's imaginary friend grows up with her and becomes a huge part of her life as she struggles to understand his existence: a story about two friends separated by bounds of reality.
In a world where dreams are physical manifestations, a young writer discovers a hidden library within his dreams. Each night, he enters this mystical realm and encounters characters from his own stories, both published and unpublished. However, he soon realizes that the dreamscape is under threat from a malevolent force that seeks to destroy all imagination.