Willow Dupré never thought she would have to marry, but with her father's unexpected retirement from running the prosperous Dupré sugar refinery, plans changed. The shareholders are unwilling to allow a female to take over the company without a man at her side, so her parents devise a plan—find Willow a spokesman king in order for her to become queen of the empire. Willow is presented with thirty potential suitors from the families of New York society's elite group called the Four Hundred. She has six months to court the group and is expected to eliminate men each month to narrow her beaus until she chooses one to marry, ending the competition with a wedding. Willow reluctantly agrees, knowing she must do what is best for the business. She doesn't expect to find anything other than a proxy . . . until she meets Cullen Dempsey, and she must discover for herself if his motives are pure.

Jilted in front of all New York, Theodore Day decides to lose himself in his family's luxury riverboat business in New Orleans and compete against his brother to become the next company head. The brother with the most sales by summer's end will win the position. Thanks to Theodore's fame as a suitor in Willow Dupré's outlandish competition to find a husband, he has become very desirable royalty in southern society and thus has an advantage. It took Flora Wingfield's best work to convince her family to summer in New Orleans, but with Teddy Day a bachelor once again, she's leaving nothing to chance. Desperate to stand out from all the clamoring belles, Flora attempts a bold move that goes completely awry, only to find it's her interior design skills that finally catch his notice. But when Flora learns her father has matchmaking schemes of his own, Teddy will have to decide where his happiness truly lies and what he is willing to sacrifice for it.

Delia Vittoria's mother has lost her voice at last. After five years of being her diva mother's understudy, it is time for Delia to assume her place as the lead soprano on stage behind the Academy of Music's faded velvet curtain. And she is all that stands between the Academy and its greatest threat—the nouveaux riche's lavish new Metropolitan Opera House. Kit Quincy never misses opening night, but when his sister begs him to help get her husband out of an Italian opera star's arms, Kit confronts the wrong Lady Vittoria. When he happens upon the stunning young diva again at Mrs. Astor's dinner the following night, he attempts to make amends and is instead pulled into a plot to win the great opera war. To draw attention to Delia Vittoria as the new soprano star, Kit is convinced to act as both Delia's patron and the enigmatic phantom who once haunted the Academy years ago. But when a second phantom appears, more than Delia's rising career is threatened.