P is for Peril by Sue Grafton

Kinsey Millhone never sees it coming. She is mired in the case of a doctor who disappeared, his angry ex-wife, and beautiful current one–a case that is full of unfinished business, unfinished homes, and people drifting in and out of their own lives. Then Kinsey gets a shock. A man she finds attractive is hiding a fatal secret–and now a whole lot of beauty, money, and lies are proving to be a fatal distraction from what Kinsey should have seen all along: a killer standing right before her eyes. . .
Copyright 2001
Hardback
ISBN0-399-14719-5