Marat/Sade

Peter Brook, who has died aged 97, was among the most influential theater directors of the 20th century, reinventing the art by paring it back to drama's most basic and powerful elements.

An almost mystical figure often mentioned in the same breath as Konstantin Stanislavsky, the Russian who revolutionized acting, Brook continued to work and challenge audiences well into his 90s.

One-woman plays are risky business - particularly when they aim to condense a complicated play within a play that addresses many different concepts, such as revolution, civil disobedience, murder and insanity.