Ninna is an ordinary woman, living in the small but cosy town of Præstø’s and working in a bistro. She is a single mother, taking care of her son Dennis. He is not a child anymore but is about to turn 18 this Christmas. As the occasion suggests, Ninna is preparing a surprise party for the birthday of her boy. It won’t be a surprise party without surprises but this one is not from the kind every parent wish to have. Right there, in the middle of the celebration, Dennis confesses that he plans to move into an apartment and leave his mother’s home. Although December should be a festive month, for Ninna it is a journey through an emotional hell. Unable to accept that Dennis is an adult already, she makes every effort, uses every means to make him change his mind and come back to her.