After being driven to her sister's house, the young woman, named Audrey, struggles to convince her sister that she is sane and was wrongly committed to the mental hospital. Her sister, who has become distant and aloof, initially dismisses Audrey's claims and insists that she stay at the house for a few days to rest.
As Audrey attempts to reconnect with her sister and make sense of what happened to her, she experiences vivid hallucinations and erratic behavior that cause her sister to become increasingly wary of her presence. Audrey also begins to unravel a deep family secret that has been kept hidden for many years.
Throughout the film, the audience is left questioning whether Audrey's experiences are real or imagined, as she navigates through a world that seems to constantly blur the lines between reality and madness. The film's hauntingly atmospheric cinematography and minimalist dialogue heighten the tension and suspense as Audrey struggles to uncover the truth about her past and her present.