Murder in Aix by Susan Kiernan-Lewis

Life is good indeed, especially if you’re a thirty-something expat living in an area of Provence where people would kill to live. And do! When Maggie’s new best friend is arrested for murder Maggie is determined to find the real culprit. Trouble is, there are a few roadblocks in her way, like an old friend on the verge of divorce who’s chosen Maggie’s house to have her nervous breakdown in, an ex-paramour who has the power to make Maggie’s life miserable—and does—and oh, yes, a killer as warped and determined as any Maggie has encountered in her four years living in France.