They had nothing in common--except contests and death!
It was a small informal group, and different kinds of people belonged to it. Their backgrounds and professions were varied, but they did have one thing in common--they all loved to enter contests. And they even circulated a round-robin letter and told each other about the prizes they had won.
And then someone in the group circulated a vicious poison-pen letter.
And then one of them was murdered. Suddenly entering contests wasn't so much fun anymore.
Murder was solved a little too easily, I don't like when everything falls in place with no reality. I'm not certain it I would pick up another book by this author.