When Elle volunteers for what seems like a routine lactation study, she never expects to become a lifeline—and a plaything—in Dr. Mercer’s twisted medical experiment. Tasked with breastfeeding Isaac, a frail young adult patient whose survival depends on her milk, Elle finds herself entangled in a nightmarish bond that blurs the line between care and control, desire and dread. As Isaac's hunger deepens and her body becomes his obsession, Elle is pulled into a web of clinical manipulation, taboo intimacy, and haunting memories she can’t escape. The sterile walls of the hospital hide dark secrets, and soon Elle realizes this experiment isn’t about healing—it's about possession.