"He pitied widows, but he mistrusted them. They knew too much. As free as unmarried women, they were fully armed; this was an unfair advantage, and when it was combined with beauty, an air of well-being, a gaiety which, in a woman over forty had an unsuitable hit of mischief in it, he felt that . . . all manhood was insulted . . . But he knew hoe to protect himself." Fastidious Mr. Blackett rules his home in Upper Radstowe with a gloomy and niggardly spirit, and his wife Bertha and their three daughters succumb to his dictates unquestioningly -- until the arrival next door of the Fraser family 'with no apparent male chieftain at the head of it'. The delightful, unconventional Rosamund presides over this unruly household with shocking tolerance and good humour, and Herbert Blackett is both fascinated and repelled by his sensuous and 'unprincipled' neighbour. But whilst he struts in the background, allegiances form between Rosamund and Bertha and their children, bringing changes to Chatterton Square which, in the months leading up to the Second World War, are intensified by the certainty that nothing can be taken for granted.