The Vasseur family prepares for a bone marrow transplant for Rose, age nine, who has leukemia.

It's transplant day. Marion retreats into denial, and Claire tries to draw her back to reality.

Relief aside, Marion discovers their new life at home with Rose, whose illness turns into a tyrant.

Claire and Marion are on vacation with Léonie and Lou, but misery is no less painful under the sun.

The doctors grant Rose a discharge for Christmas. Claire realizes it's most likely her last.

Rose is in intensive care. The doctors tell her parents that she only has a few days to live.

Three weeks have passed, and the doctors don't understand: Rose is still alive and improving.