Poor, plain Emily Vane! Her spoiled sister Elyza got the beauty in the family and all the beaux. Now she had manipulated Emily into secretly exchanging costumes with her at a masked soiree so she could slip away unnoticed to a forbidden rendezvous, while wallfloweer Emily dreamed of being Elyza, the belle of the ball. It was so naughty a plan for such a nice girl... as was flirting with Charles Trevor.

Emily hadn't meant to encourage the handsome suitor. Or to kiss him. Certainly, she never intended to become engaged. But Charles had long been smitten by the 'beautiful' Vane sister. And now, alas, quite by accident, he had proposed to the plain one! Honor-bound, Emily's groom was headed for the altar like a man condemned. Should she set him free? Or could she devise a most ingenious scheme to capture his heart before their June wedding day... and make the wrong bride the right choice after all?