In writer-director Noah Baumbach's MISTRESS AMERICA, Tracy (Lola Kirke) is a lonely college freshman in New York, having neither the exciting university experience nor the glamorous metropolitan lifestyle she envisioned. But when she meets her soon-to-be stepsister and adventurous gal about town, Brooke (Greta Gerwig), Tracy is rescued from disappointment and seduced by Brooke's mad schemes.