Everyone remembers their first love. No matter how young you were, you always remember the first person to give you those butterflies that fly around in your stomach and make your heart beat so much faster than should be healthy. But not everybody knows what it's like to lose that person when they're not even around all the time. Cassie, unfortunately, does. Armed with her secrets and unwillingness to draw upon her strengths to get her through, she joins Matt in his London home. Being in London means reuniting with her best friend, Kaitlyn (who also happens to be Niall Horan's girlfriend) and a chance to make a name for herself in a place where not everyone knows what has happened. The only problem? She now has the chance to fall in love...again.