In a small Mississippi town, newlyweds Eli and Caroline MacCleary have their lives turned upside down when Caroline is brutally attacked by a mysterious creature. Seventeen years later, their son Michael begins exhibiting disturbing symptoms, prompting them to return to the town in search of answers. As Michael's condition worsens, the family finds themselves tangled in a web of dark secrets that have been haunting the town for decades. Strange occurrences begin to emerge, including unexplained deaths and eerie transformations, leading Eli and Caroline to believe that Michael's affliction is tied to his traumatic origins.

As the MacClearys dig deeper into the town’s history, they uncover a series of sinister experiments and unnatural events. The local legend of a bizarre creature lurking in the shadows gains new relevance as they piece together a terrifying connection between Michael's behavior and his mother's assault. The tension escalates as Michael's transformation accelerates, leaving Eli and Caroline racing against time to discover the truth and save their son from an unspeakable fate. Desperation leads them to confront the monstrous legacy that threatens to consume their family and the entire town.