This week's choice: The Unfinished Clue by Georgette Heyer...one of the last Heyer mysteries needed to complete my reading of her work.
Synopsis (from Amazon): Sir Arthur Billington-Smith is not a nice person: he is arrogant, opinionated, and abusive. His verbal abuse makes life a constant misery for his hapless wife, Fay. One truly awful weekend when Fay is trying to host a house party, Arthur's son and heir, Geoffrey, brings home Lola de Silva, a Mexican cabaret dancer who is wonderfully obtuse, vastly colorful, and totally unsuitable as a future Lady Billington-Smith. Arthur is absolutely incensed and takes his rage out on everyone. Therefore, when he is found stabbed to death in his study later in the day, all those in the house become suspects.