The following contains spoilers for Materialists, now playing in theatersMaterialists' primary plot involves the love triangle that develops between Lucy, Harry, and John, with Lucy's final decision serving as the emotional and thematic point of the movie. Directed and written by Celine Song, the film focuses on Dakota Johnson's Lucy. A matchmaker working in New York City to unite some of the most eligible bachelors and bachelorettes in the city, Lucy finds herself torn between her new romance with the charming finance expert Harry and her old flame, the sweet-natured struggling actor John.