Duet for One 1986 is a British film adapted from the play, a twohander by Tom Kempinski, about a worldfamous concert violinist named Stephanie Anderson who is suddenly struck with multiple sclerosis. It is set in London and directed by Andrei Konchalovsky. The story is based on the life of cellist Jacqueline du Pr, who was diagnosed with MS, and her husband, conductor Daniel Barenboim, and only marginally fictionalized.
Duet for One premiered at the Bush Theatre in 1980 with Frances de la Tour and David de Keyser in the leading roles. Kempinski and de la Tour were married at the time, and he wrote the role with her in mind. It had successful runs in the West End and on Broadway. A major revival was staged by the Almeida Theatre in 2009, starring Juliet Stevenson and Henry Goodman. This revival too was lauded by the critics, and it subsequently transferred to the Vaudeville Theatre in the West End.
Source: Wikipedia