Alex was Lucy's first boyfriend, her first love, her first everything. After spending the summer apart Lucy couldn't wait to see Alex on the first day of school, and share her special surprise with him. Only instead of reacting the way she thought he would, Alex breaks up with her! Lucy is completely devastated, and utterly heartbroken. Then she meets Olivia, a striking but mysterious girl, who gives Lucy the opportunity of a lifetime! Olivia is part of a secret sisterhood of heartbreakers, a group of girls who are immune to ever having their hearts broken. If Lucy joins the secret sisterhood, not only will her own heart be healed, it will never be broken again! The rules are simple, make someone love you in the next seven days,  and then break their heart. But Lucy has another plan in mind! What if instead of using the secret sisterhood of hreatbreakers to win a heart and break it, she used it to win a heart and keep it? With the clocking ticking away will Lucy be able to win Alex back, or is she destined to be heartbroken forever?