Demigod Seth is consumed by rage and a thirst for vengeance after his lieutenants defect, targeting Josslyn Haliday as his instrument of retribution. Seth believes Josslyn's sisters are responsible for the betrayal and intends to make her pay, but he underestimates Josslyn's own fierce determination to rescue her sisters. She is willing to make a deal with Seth, whom she views as the devil, to achieve her goal, setting the stage for a dangerous alliance where the lines between victim and captor blur.

The premise sets up a high-stakes paranormal romance where a powerful, vengeful demigod clashes with a determined heroine. The narrative appears to focus on the intense conflict arising from their opposing goals and the potential for a dark, passionate connection to form between them. Readers can expect a story driven by action, supernatural elements, and the exploration of a morally gray relationship. The plot suggests themes of betrayal, loyalty, and the lengths one will go to for family.