Set in Germany during the post World War I era, Anna (Paula Beer) grieves over the loss of her fiance, Frantz. After a visit to the graveside, Anna witnesses Adrien (Pierre Ninney), a French war veteran, put flowers on the marker.
Despite the cultural divide from the Armistice of World War I, Anna and Adrien communicate with each other. Each individual talks about their experiences knowing Frantz, an artistic soul who died in the muddy trenches. At times this relationship evolution is beautiful, but the horrors of war reveal dark secrets of human nature.
Frantz is presented in grim black and white cinematography that also echoes Sir Alfred Hitchcock’s version of Rebecca. Yet Ozon takes advantage of modern technology to include color cinematography for moments of beauty and grace. Given that Frantz is a study of grief, this film becomes life-affirming despite the tragedies on faces in life.