Mark St Germain's play Freud's Last Session at the King's Head Theatre in Islington is a compact yet powerful play which imagines a clash of intellect and reasoning between two famous minds.
It's England on the day that World War II will be declared, and Freud (Julian Bird) has invited Oxford Professor CS Lewis (Séan Browne) to see him at his London home. The founder of psychoanalysis is in the later stages of painful mouth cancer, while Lewis is yet to become a famous writer.
Freud, an atheist, is fascinated with Lewis's sudden re-adoption of Christianity, having lost his faith as a teenager. With the threat of war looming, the two debate the existence of God, religion, sex and relationships.
St Germain's tight script allows the interrogation of both men's arguments, yet the conversations' seriousness also has flashes of wit and humour. It is not so much a case of one winning over the other but what they discover about themselves during the conversation.