Now here's a pitch that immediately sells itself: Sydney Sweeney and Amanda Seyfried star in a sexy psychological thriller directed by Paul Feig and based on a bestselling book that's sold over two million copies. And you can check out the trailer for the film, based on Freida McFadden's twist-filled book, below;Sabrina Carpenter needledrop? Sydney Sweeney and Amanda Seyfried doing that thing where you say one thing while your eyes are saying something else entirely? Check, check, and treble check! Trying to escape her past, Millie (Sweeney) accepts a job as a live-in housemaid for the wealthy Nina (Seyfried) and Andrew Winchester (Brandon Sklenar).