Fed up taking care of everyone's needs but her own, writer, wife and mom Annie discovers a tiny door in her closet that leads to what appears to be a better version of her life: a sweet and perfect doppelganger of her husband, well-behaved and helpful kids, a writing mentor who lives next door. But as this "Closet" family begins to reveal their flaws, Annie's place in this new world is challenged by the Closet version of herself.