This show is at heart a revival. Not of Shakespeare, because he doesn’t need it, but of a theatrical genre not much seen since the 1960s. Revue used to be a popular staple of the theatre and found favour as a more upmarket, slightly more sophisticated variety show, performed by a small company working with a thematic selection of witty and clever material. It was meant to make you feel better about your life. Above all it had to be funny.