Max is being followed. Or so she thinks. Her boyfriend, Nathan, is too busy playing house with his twin sister, Claire, to notice. The twins have lived as near-shut-ins in their expansive, messy loft sustained by a large inheritance. They fill their jobless hours building elaborate pillow forts, watching home videos, and teaching themselves dirty jokes in Russian. Living with Max has done little to jolt them out of this routine, but outside forces — Max's unplanned pregnancy, an apparently stalker, and the twins' adoption of their favorite novelist, Marc-Philippe Young — threaten to penetrate their insular utopia.