Kindness, modesty - unfortunately, with the help of these qualities a girl will not find a husband in London society, as Lady Felicity Faircloth learned from personal bitter experience. And therefore, when a mysterious stranger, who sneaked into her bedroom under the cover of darkness, offers to help her make a brilliant match, she agrees.

Her mysterious patron has nothing but a dark past, huge money, and the gloomy nickname “Devil” "and the thirst for revenge in the soul. And it is precisely the instrument of his revenge that he intends to turn Felicity into.

However, the closer to the successful completion of his insidious plan, the clearer it becomes to the Devil: the simple-minded prude, without knowing it, awakened in his heart feelings that he considered long lost...