First, do no harm. How do we defend the truth when no one agrees what it is and many have reason to undermine it? Very freely adapting Professor Bernhardi by Arthur Schnitzler, Robert Icke's gripping moral thriller uses the lens of medical ethics to examine urgent questions of faith, belief, and scientific rationality. After a critically acclaimed run at London's Almeida Theatre, The Doctor transferred to the West End in September 2022. This revised and updated edition was published to coincide with the new production.