In Once You’re Mine, the dark romance unfolds around Hayden Bennett, a morally ambiguous lawyer who becomes obsessively infatuated with Calista Green after attending her father’s funeral. As he stalks her under the guise of protection, his violent tendencies surface when he eliminates anyone who threatens his claim on her. Their relationship spirals into a complex web of manipulation and desire, culminating in a gripping cliffhanger that leaves readers questioning the boundaries of love and obsession.