Phil (Justin Kirk) and Sandy Mason (Jennifer Garner) have moved to Palos Verdes, with their teenage twins, Medina (Maika Monroe) and Jim (Cody Fern). Phil and Sandy seem to think only about themselves. Sandy seems very different from Phil, who enjoys going out to parties and traveling, where Sandy likes to stay inside wrapped in a pink bath robe. Sandy's mood swings and inability to adjust to her new surroundings make her paranoid and difficult to handle. She suspects Phil of having an affair, due to him lying about working late and the smell of Chanel perfume in his car.