Why does this utterly conventional woman do this? What happens to her when she lands in Manhattan with an unusually rebellious teenager as her ward? And, which of the two women is stronger, the uptight wife-and-mother or the irrepressible free spirit? It’s a story full of surprises—about who these women really are, and who they eventually become.

Based on Laura Moriarty’s beloved New York Times best-selling novel, “The Chaperone” reunites the writer (Oscar-winner Julian Fellowes), director (Michael Engler) and star (Elizabeth McGovern) of “Downton Abbey” for an immersive and richly emotional period piece. The film also stars Campbell Scott, Geza Rohrig, Miranda Otto, Robert Fairchild, and Blythe Danner.