The Millers Girl ending includes concerning messages about teacher-student relationships. This thriller starts out with an opulent 18-year-old named Cairo Sweet (Jenna Ortega) trying to pinpoint her greatest achievement. Despite her academic successes, she thinks that she hasnt actually experienced anything real. Her friend, Winnie (Gideon Aldon), jokingly suggests that she get into a student-teacher relationship. Cairo decides she wants to follow this advice, setting her eyes on Mr. Jonathan Miller (Martin Freeman), her creative writing teacher. Even before she starts expressing her interest, Mr. Miller becomes infatuated with Cairos intellect and literary prowess.