Predatory Cabal

Why is the West Side, Massachusetts suburban community minimizing the impact of murders of five wealthy and accomplished citizens? Is it a result of their 'putting their heads in the sand' in order to ignore the sexual revolution taking place in their beautiful city?
Perhaps the community disapproves of the victims. Their famous serial murder solver Captain Rudy Beauregard must face citizens who appear to be resistant to discussing lifestyle elements central to the murders. Lack of evidence and silence amongst those most closely involved with the victims are roadblocks. Beauregard believes firmly that in these particular series of murders, police gumshoe tactics versus forensic science will bring about solutions.
Captain Rudy Beauregard's detectives feel out of their element when five beautiful people are murdered in suburban West Side Massachusetts. The detectives discover the victims were participants in sexual forays; anathema to the broader elite community. As stated by all, "This is not NYC."
Captain Rudy Beauregard is looking for motives for the five murders. Four of the victims, one man and three women were considered 'La crème de la crème'. The fifth murder did not fit the profile for the other murders. The first four murdered appeared to be victims of their own pushing the sexual envelope for highs; highs he did not like. He wondered why those who had everything such as money, beauty, and prestige positions would seek pain as an aphrodisiac.
Why, just why, did they have to die? He wondered if sex was not the motive. Perhaps he could fall back on greed, power, and envy; his favorite motives for murder. Who is the sociopath/psychopath behind the killings? These were not serial murders. These murders were planned. The killer left little forensic evidence. Solving these murders required a deeper look inside the community and inside some of the detectives, themselves.