Pierre, a young Belgian soldier wants to prove himself on the battlefield during the First World War. Behind the frontlines, he meets Francis, who is asked to find a way to boost morale. Coward is a historical war drama following a clandestine romance between two young men—a disillusioned Belgian soldier named Pierre (Emmanuel Macchia) and a creative, flamboyant tailor named Francis (Valentin Campagne)—amid the trench warfare of World War I.