In the rarefied world of high art, a legendary and formidable opera star steps from the stage into the classroom. Meryl Streep delivers a tour-de-force performance as Maria Callas in this gripping drama, directed by the acclaimed Mike Nichols from a script by Terrence McNally. The film captures a series of intense master classes where the volatile, brilliant Callas mentors a new generation of singers, using her own triumphs and profound personal tragedies as the ultimate teaching tools. As she pushes her vulnerable students to their emotional and artistic limits, the lines between instructor and performer blur, revealing the punishing cost of genius and the relentless pursuit of perfection. This intimate biographical portrait masterfully blends soaring musicality with raw human drama, exploring the complex legacy of an icon who sacrificed everything for her art.