Following a sold-out run at Bristol Old Vic, Mark Rylance is retuning to the West End with Dr Semmelweis, playing at the Harold Pinter Theatre. Directed by Tom Morris, the play tells the story of pioneering Hungarian doctor Ignaz Semmelweis, who was working in 19th century Vienna where thousands of women were dying in childbirth each year, as he battled to get his ideas around antiseptic accepted by the medical community.