Spencer's older sister Melissa has everything she ever wanted. She just got accepted to the Wharton School of Business and she's engaged to the cutest med student on Earth. What she doesn't already have, she's not afraid to take – like Spencer's newly renovated loft. What would Melissa do if Spencer took something of hers -- namely her perfect fiancé? After all, Spencer already kissed one of Melissa's exes. What's to say she won't do it again – and more? Melissa and Spencer have a definite sibling rivalry. Question is how dirty will it get?