Harper is living a life she never expected. After a failed attempt at making it as an artist in New York while falling for and losing her first love, her dreams crumbled in the span of a week. A decade later, Harper is happily living a simpler life as an art teacher in Chattanooga with her beloved new husband, Ben. When Ben is diagnosed with late-stage cancer, their whole world shifts. Despite the bad news, Ben comes up with one final wish for his wife: he wants Harper to find a new partner before he dies. When the sends a journalist to do a feature story about Ben's life, Harper comes face to face with Liam Hale, the man she fell madly in love with all those years ago and never saw again. Suddenly, Harper is faced with all of those old what-ifs: What if Harper had ended up with Liam instead of Ben? What if she'd pursued life as an artist instead of teaching? What if it had all turned out differently? After making a wish, Harper wakes up to find herself in a parallel universe . . . where her what-ifs become a reality. Is the grass really greener, or is she standing right where she should be—no matter the cost?