Nina and Madeleine, two retired women, are deeply in love. As far as everyone else is concerned, they're merely neighbors living on the top floor of their building. Every day, they come and go between the two apartments. Their landing serves as a gateway between their two worlds—the neat and orderly life of Madeleine, a grandmother who has regular visits from her daughter Anne, and the more free-spirited, rootless life of Nina. One day, something tragic happens and the doors close once again. Madeleine is taken away from Nina, as Anne slowly uncovers the truth about her mother. The landing separating the two women now becomes a barrier that they are determined at all costs to break through.