In Diva, the artist Maria Callas is mired in decadence. Onassis is dead and criticism is preying on her. She lives in a world of memories, disdaining the present while she forces her repeater to accompany her in an imaginary repertoire that she will no longer be able to interpret. She also uses it to create a sadomasochistic situation. She forces him to play Onassis, her great love. The most passionate and stellar moments of her.
In her delirium, she imagines the Greek as a couple of the great operatic dramas that she starred in. Someone to kill her or someone to die with at the end of the opera. It is the beginning of the path towards her own mysterious end, which she will soon carry out at her will.