The housekeeper / Joy Fielding.

In the end, I have only myself to blame. I'm the one who let her in. Jodi Bishop knows success. She's the breadwinner, a top-notch real estate agent. Her husband, Harrison not so much. Once, he had big dreams. But now, he's a middling writer who resents his wife's success. Jodi's father, Vic, now 79 and retired, is a very controlling man. His wife, Audrey, was herself no shrinking violet. But things changed when Audrey developed Parkinson's eight years ago, and Vic retired to devote himself to her care. But while still reasonably spry and rakishly handsome, Vic is worn down by his wife's deteriorating condition. Exhausted from trying to be all things to all people, Jodi finally decides she's had enough and starts interviewing housekeepers to help care for her parents. She settles on Elyse Woodley, an energetic and attractive widow in her early 60s, who seems perfect for the job. While Vic is initially resistant, he soon warms to Elyse's sunny personality and engaging ways. And Jodi is pleased to have an ally, someone she can talk to and occasionally even confide in. Until she shuts Jodi out. And Audrey's condition worsens - rapidly. Who is this woman suddenly wearing her mother's jewellery? What is she after? And how far will she go to get it?