Aristocrat Marie de Mézières (Mélanie Thierry) loves the dashing Duke Henri de Guise (Gaspard Ulliel), but her father (Philippe Magnan) forces her to marry a prince she doesn't know (Grégoire Leprince-Ringuet). With her new husband at war, Marie's passion for Henri grows stronger than ever. Bertrand Tavernier directs this historical drama set against a backdrop of religious conflict in 16th-century France.