Marnie has lived a simple life. She had a small family that loved each other, access to an incredible education that allowed her to meet her beautiful fiancée, and a successful career that she paved for herself. But after her fiancée breaks up with her with a heart wrenching few words, Marnie's world begins to fall apart. Not to mention, a stranger appearing at her door claiming to be a reader of a book that Marnie is the main character of, urging her to change the ending of her own story.