But then the play takes a serious turn to the matter of medical ethics. Victoria Hamilton's pretty little Jennifer Dubedat, behaving like a sixth-form school girl who has heard sex appeal should be applied discreetly to men over 40, bares her entire heart. She wants Sir Colenso, who has a cure for TB, to save her dying consumptive artist-husband, Louis. McDiarmid's Ridgeon, the most compelling, natural performance I have seen from him, emanates the sly, dry craftiness of a fox who knows a secret way into the hen-house.