After Jane helps a friend with a sticky personal problem, word starts to spread around her bridge club-and then around all of West Cambridge, Massachusetts-that she's the go-to girl for situations that need discreet fixing. Soon she has her first paid assignment-the director of a 55-and-over condo community needs her to de-escalate hostilities among the residents. As Jane discovers after moving in for her undercover assignment, the mature set can be as immature as any high schoolers, and war is breaking out between cliques.

It seems she might make some progress-until one of the aging "popular kids" is bludgeoned to death with a golf club. And though the automatic sprinklers have washed away much of the evidence, Jane's on course to find out whodunit . . .