Celebrating Christmas in Hamburg with their parents Gitta and Henri is a tradition for the entire Johnen family. But an email that adult siblings Annika, Sanne and Bastian receive from their parents shortly before the holidays suddenly turns their annual Christmas routine upside down. This year, the family’s Christmas will take place in a snowy setting, in a cottage in Norway. Once there, the anticipation is huge. In the confined space, however, old conflicts quickly reappear. And their parents are acting strangely. Could Henri be having an affair?