In Secret (also known as Thérèse) is a 2013 American erotic thriller romance film written and directed by Charlie Stratton. Based on Émile Zola's classic 1867 novel Thérèse Raquin and the 2009 stage play by the same name penned by Neal Bell, the film stars Elizabeth Olsen, Tom Felton, Oscar Isaac and Jessica Lange. It was screened in the Special Presentation section at the 2013 Toronto International Film Festival. The film received a regional release on February 21, 2014.

Plot

In the lower echelons of Parisian society in the 1860's, Thérèse Raquin is a beautiful, sexually repressed young woman trapped in a loveless marriage to her sickly cousin, Camille, whom she was forced to marry by her domineering aunt, Madame Raquin.