Freida McFadden’s hit novel “The Housemaid” is the latest “BookTok” phenomenon to earn itself a feature film adaptation. Paul Feig (“Bridesmaids”, “Spy”, “A Simple Favour”) is the director charged with adapting the best-selling thriller for the big screen, and given his track record of producing entertaining female-led movies, it would seem like a decent match; However while “The Housemaid” teases a camp, fun thriller, it only partially delivers on its promise, and instead largely stays well within the boundaries of your typical erotic thriller. Sydney Sweeney plays Millie Calloway, an out-of-work young woman with a checkered past who is living in her car and washing in public restrooms. She dons a fake pair of glasses to make her seem more respectable for an interview with Nina Winchester (Amanda Seyfried), who is on the search for a live-in housemaid. To her surprise, Millie is offered the job, and given the attic room to stay in. The next morning, Nina becomes unhinged and begins te...