In the dark hallways of a hospital, the ghost of a nurse known as “La Planchada” wanders, famous for her impeccable appearance. While patients believe she is there to help them, the nurses and doctors know the truth: they must follow her rules to the letter. “Forget nothing. Do not get distracted. Do not socialize with the staff. Never fall asleep.” Rebeca, a new nurse on probation, must not only prove her worth to her superiors but also face this mysterious and feared entity.