Isabella Duvall surely could use a hero to help her out of her current cash crisis. After years of caring for her ailing mother, the only way to keep her family together is to sell their home. As luck would have it, handsome Alex Carlton, a bachelor who'd always dreamed of owning the magnificent mansion, is happy to buy her out. Delighted by the prospect of sharing digs with the hottest hunk in town, Isabella's three sisters devise a plan. In order to keep their home in the family, one of them will have to capture the new owner's heart. But which of the Duvall sisters will become the queen of Carlton's castle?