When Trey Blackburn returns to his decaying hometown for his monstrous father's funeral, he finds the morgue drawer empty. The body is gone. A cryptic warning from a decade-old security tape—"That's not my son! Check the attic!"—sends him searching for a mysterious stone box. He soon discovers his father didn't just die; he evolved. Trey must unravel a dark family legacy tied to the town's rotten core, where the dead don't stay buried and a terrible secret has been festering for generations, waiting for him to come home.