Robert Barnard summarised the plot of the novel as an "Elderly man married to a glamorous nitwit of dubious social background is a common plot-element in Christie. Here she is widowed (in an air-raid – this is one of the few Christies anchored to an actual time), and burdened by financially insatiable relatives, both of blood and in-law. But who exactly is dead, and who isn't? And who is what they seem, and who isn't?" His commentary is favourable on the title, more cryptic on the novel itself, as he said it was a "Compulsive reworking of Tennysonian and Christiean themes, and pretty high up in the range of classic titles."