It is the original postwar Germany and Austria into which Stuart Paterson’s book for new musical Identical takes us in a fresh, bouncy Stiles and Drewe musical. Auditions of hundred pairs of identical twins found three: on press night Eden and Emme Patrick proved faultless in a complicated, sometimes emotionally intense performance, first disliking one another on sight and then rapturously realising their sisterhood; they are playfully natural and assured, rarely offstage for long