Nora’s parents favor her sickly twin sister Molly. Left behind at home during a family trip, Nora discovers a magical closet space where the gentle "Closet Mommy" and black cat Milo take care of her. After donating blood for Molly in the hospital, Nora vanishes into the space forever. When the truth comes to light, the family is consumed by endless regret — and Nora has finally found a real home full of love.
