Charles Prentice arrives in this strange community to discover just why his brother Frank, manager of the local sports club as confessed to a charge of murdering five people in a house fire! Everyone, apart from the local police, is so sure of his innocence that Charles decides to do some investigating of his own. His questioning causes all sorts of attacks upon him as he discovers a strong undercurrent suggesting that there are much more complex things of concern to the community than the death of five people!
At first Charles is sickened by the behaviour of the residents he meets but gradually he is drawn into their world. The person who has the most disturbing effect upon him is Bobby Crawford the club tennis coach who changes Charles Prentice just like he did his brother Frank before him. So much so that he accepts his logic without fully understanding that he is becoming involved in a bizarre social experiment.
A clever totally unexpected ending, though afterwards when I was still thinking about the novel I realised it was the obvious one, just that I had missed the hints!