Annabelle and Rosabelle are twins as close as they are beautiful. However, the inseparable pair has not seen each other in four years since Rosabelle left for London to marry Steven Ordway. That is, until one day Rosabelle visits home after her husband's untimely demise. Outraged at the sight of her sister's haggard appearance, Annabelle declares that she will return to London under the guise of Rosabelle in order to get back at Giles Stanton, head of the family and the man who pushed her sister to the point of exhaustion. But when she comes face-to-face with Giles, this dashing man manages to steal Annabelle's breath away.