The Safe Place by Anna Downes

Emily Proudman just lost her acting agent, her job, and her apartment in one miserable day. Scott Denny, a successful and charismatic CEO, has a problem that neither his business acumen nor vast wealth can fix. Until he meets Emily. Scott offers Emily a summer job as a housekeeper on his remote, beautiful French estate. Enchanted by his lovely wife Nina, and his eccentric young daughter, Aurelia, Emily falls headlong into this oasis of wine-soaked days by the pool. But soon Emily realizes that Scott and Nina are hiding dangerous secrets, and if she doesn’t play along, the consequences could be deadly.