Robert Barnard: "Notable specimen, with more complex characterization than usual, and occasionally rising to wit (especially on the subject of cooking). Illustrates vividly one dilemma of the detective writer: if you establish characters of some psychological complexity, how do you prevent the routine detection stuff coming as an anticlimax? Christie records that her daughter protested against her decision to dramatize the book, and the instinct was probably right: most of the interest here, unusually, is internal, and difficult to present via Christie's rather old-fashioned stage techniques. Definitely among the top ten, in spite of the falling-off in the second half."