As this is a true Golden Age crime novel, the main detective work is carried out by an enthusiastic amateur (in this case Roger Sheringham) who benefits from a very accepting police force. The crimes are at first treated as suicide but Roger suspects foul play. How he proves it and unmasks the murderer is very innovative, to the point of absurdity but at least it is pretty unique...
A decent read, full of period feel (not always for the best, the story is marred by anti-Semiticism). Sheringham is a good detective hero, not quite as clever as he thinks he is. He makes mistakes and this adds to the richness of his character.
