Janna Hansen has a quiet and pleasant life; she works as interior designer and she has a companion Klaus.This night she comes back home with a bottle of champagne and finds Klaus in their bath tube with her sister.Very angry she leaves the apartment and goes to a hotel to find peace.On the morning she finds in the hotel room a love letter of a man,she is very moved by this letter and the only important data is that this has been sent for a place called Echterode in the Harz Mountains.So she asks her boss to send her in her next duty towards the Harz Mountains,so she will travel to Echterode to known who sent this beautiful love letter.