When Professor marries Hazel, Lady Carpenter warns that this new wife is like her twin, Chloe, he will have trouble telling them apart. So inseparable are the twins that the Professor lives with both women under one roof. Into this generous and harmonious household return their daughters - triplets - fresh from their round-the-world travelling, and ready for whatever excitement they can grab next in their lives. Family life in the otherwise quiet house swells to a chaotic dazzling crescendo as the Professor struggles to keep in step with the seven women in his life and a strange request from Dr Florence.