Lydia Tár has made it. The gifted conductor has asserted herself in the male-dominated classical music scene and is at the peak of her career. With her orchestra, she is planning a highly anticipated recording of Gustav Mahler's Fifth Symphony. But during the rehearsals, the star conductor's world is increasingly shaken: not only does her relationship with her concertmaster become increasingly complicated, but past life decisions, accusations and her own obsessions threaten to catch up with her. In the weeks that follow, control over her own life slips away more and more...