Private Lives is a four act tragedy from the 40s.
 Mrs Christie's Three Act Tragedy is up to her best level"; he summarised the set-up of the plot but then added, "A weak (but perhaps inevitable point) is the disappearance of a butler; the reader, that is to say, is given rather too broad a hint
 An adaptation starring David Suchet for Agatha Christie's Poirot was released as the first episode of Season 12 in 2010, with Martin Shaw as Sir Charles Cartwright, Art Malik as Sir Bartholomew Strange, Kimberley Nixon as Egg Lytton Gore, and Tom Wisdom as Oliver Manders

