Charlotte is a young woman who finds herself pregnant shortly after the unexpected death of her boyfriend, Ben. Devastated by the loss and overwhelmed by her pregnancy, Charlotte becomes ensnared in the care of Ben's controlling and oppressive family, particularly his overbearing mother, Margaret, and his enigmatic stepbrother, Thomas. The family's sprawling estate becomes the backdrop for Charlotte's unfolding nightmare as she battles to maintain her autonomy and sanity. Margaret insists on taking care of Charlotte as part of the family legacy, leading to increasingly invasive and manipulative behaviors that make her feel isolated and entrapped.

As Charlotte’s discomfort grows, she starts to question whether she is being paranoid or if there is a more sinister plan at play. Her interactions with Margaret and Thomas become fraught with tension, as they exhibit increasingly unsettling behavior under the guise of concern for her well-being and the baby. These interactions exacerbate her sense of isolation, as attempts to reach out for help are blocked or manipulated by the family's influence. The house itself begins to feel more like a prison, with Charlotte's grip on reality slipping as she unravels the true intentions surrounding her and her unborn child.