In contemporary Paris, German filmmaker Tomas (Franz Rogowski) embarks on a torrid love affair with a young woman named Agathe (Adèle Exarchopoulos), blurring the lines defining his relationship with his husband, Martin (Ben Whishaw). When Martin begins an extramarital affair of his own, he successfully gains back his husband’s attention while simultaneously unearthing Tomas’ jealousy.
