Moonlight Becomes You - Mary Higgins Clark

From Queen of Suspense Mary Higgins Clark, a thriller "that grabs you with the first paragraph and never let's go" (USA TODAY) about a woman desperate to uncover the truth behind her beloved stepmother's death.
At a party in Manhattan, Maggie Holloway—one of the fashion world's most successful photographers—is thrilled to be reunited with her beloved stepmother. A widow now, Nuala Moore is equally delighted to see her long-lost stepdaughter, and she invites Maggie to spend a few weeks at her home in Newport, Rhode Island. But when Maggie arrives, she finds Nuala murdered, apparently by a burglar.

Heartbroken, Maggie is stunned to learn she had inherited Nuala's stunning Victorian home...and horrified when she begins to suspect that Nuala's death was not random but part of a diabolical plot conceived by a twisted mind. When Nuala's dear old friend, Greta Shipley, dies suddenly of supposedly natural causes, Maggie is convinced that there is a link between these two and other recent deaths among the older women of Newport. What she doesn't realize is that she has now become a target for the killer as well, and that each clue she uncovers brings her closer to an unimaginable fate.