Claire awakens one morning to the shocking realization that she is shackled in a basement. Her fear intensifies when she learns that her captor is none other than her mother, Helen. Helen insists that this drastic measure is essential and “for Claire’s own benefit.” As the days and nights unfold, Claire is haunted by bizarre visions and terrifying encounters, leaving her teetering on the brink between reality and madness. Ultimately, she must confront a grim truth.