John Casken's powerful new opera is based on a story by Tolstoy about a young Imperial officer, Stepan Kasatsky, who is betrayed by his fiancee and runs away to a monastery, becoming Father Sergius and embarking on a vain search for peace and truth. Into this story Casken weaves a parallel modern fable of Stephen, a young academic studying Father Sergius's diaries. Andrew McGregor presents this Almeida Opera premiere production in conversation with the Composer.