Hero chose the wrong sister to marry. (Really, there wouldn't even be a story if he chose the right sister) Sister ran away to Gretna Green on the eve of her wedding day while heroine took her place. Hero didn't find out about the switch until they were on their way to Russia. They fall in love but sister came back to cause more trouble for her selfish needs.

Sad to say, but I liked the epilogue a whole lot more than the story. It's a melancholy and unusual epilogue ***CAUTION SPOILER AHEAD*** In between the main part of the story and the epilogue, hero was put in jail! while heroine became an outcast!! but they do get back together at the very end and there's a secret baby thrown into the mix!!! ( )