A marriage of convenience - until her fiance falls for her sister. When Elisabeth's husband dies, leaving her penniless and with child, she must reenter London society to find a suitor. But how can she hope to compete with a fresh batch of debutantes, especially her charming little sister? Thus, when a young widower offers Elisabeth a marriage of convenience, she hastily accepts. Worry ignites, however, when her newly minted fiance and her sister end up quarantined together. Meanwhile, Elisabeth falls for another gentleman, one with neither profession nor prospects. How can she untangle herself from this quagmire of confusion and follow her heart when it means putting her livelihood, reputation, and relationship with her sister at risk?