Think The Postman Always Rings Twice in period costume and you'll instantly get what In Secret is all about. It is based on Émile Zola's novel, Thérèse Raquin, a kind of proto-noir. Elizabeth Olsen stars as Thérèse, an illegitimate cousin to the sickly Camille Raquin (Harry Potter's Tom Felton), who earns her keep as his sort of nurse. Camille's overprotective mother, Madame Raquin (played by the 1981 Postman's femme fatale, Jessica Lange) thinks she is doing all a favor by proposing a marriage between the two cousins. But Camille comes up short in the sexual heat department. Enter Laurent (Oscar Isaac), Camille's horny, hunky, childhood pal. It's not hard to figure where this is going from there.
