Emma Parker is a young girl working a tiring sales job, but her dream is to become a writer. Just as she's ready to give up on her novel, she receives a mysterious letter inviting her to The Library of Forgotten Dreams. Inside, she finds stories that people started but never finished-including one of her own from high school. The friendly librarian, Mr. Arthur, explains that she can complete any story, which will magically change real lives. But this power comes with risks. Emma must decide whether to rewrite her past or move forward and create her future.