Everybody in this world has a soulmate. When you are born, you are given a silver chain necklace with an intricate charm. There are only two that are exactly alike in the entire world. The caring ones, the shy ones, the confident ones, the tough ones, the angry ones, the sick ones, the crazy ones, everybody has a necklace. It's only if you choose to follow it, that you will find your one true love. When the town bad boy who is constantly in trouble discovers Harley is his soul mate, he doesn't wait a second to make sure she's all his.

Julia isn't the girl who gets all the guys. She finally gets her first boyfriend in her senior year of high school, but when things go from great to horrible in her relationship, she knows it's time to change. She moves to London to start over. She puts up walls that are difficult to break down and doesn't let just anyone in. Her trust issues always get the best of her, ruining any chances of another relationship. But what happens when she bumps into her new neighbor, Niall Horan? When he starts falling for her, will she let him in or push him away?