A Blunt Instrument by Georgette Heyer
When Ernest Fletcher is found bludgeoned to death in his study, everyone is shocked and mystified: Ernest was well-liked and respected, so who would have a motive for killing him?
Enter Superintendent Hannasyde who, with consummate skill, begins to uncover the complexities of Fletcher's life. It seems the real Fletcher was far from the gentleman he pretended to be. There is, in fact, no shortage of people who wanted him dead.
Then, a second murder is committed, with striking similarities to the first, giving a grotesque twist to a very unusual case.