Devil in Winter unfolds the captivating story of Evangeline Jenner, the shyest member of a group of young ladies who have entered London society with the aim to find husbands. Evangeline, who stands to inherit a vast fortune, finds herself in a precarious situation due to her unscrupulous relatives. In a bold move, she proposes marriage to the notorious rake, Viscount St. Vincent, to escape their clutches.

Sebastian, Viscount St. Vincent, is known for his dangerous reputation, one that could ruin any maiden's good name within seconds. Yet, Evangeline, unchaperoned and bewitching, appears on his doorstep offering her hand in marriage. This proposal, however, comes with a condition: their marriage would be devoid of lovemaking after their wedding night. Evangeline is determined not to become just another broken heart discarded by the dashing libertine. This sets the stage for a tale of seduction, where Sebastian must either work harder at his seductions or, for the first time, surrender his own heart in the name of true love.