Briefgeheim plot
Eva and Jackie are best friends. Together with Thomas they have made a secret hideout. Eva's parents are always arguing, sometimes they don't say anything to each other for a whole week, and the three therefore decide to punish the parents. They decide that Eva will run away from home. As Eva ponders the plan, she finds a letter in a colonel's yard. The letter she found then gets her into trouble, because suddenly she really disappeared without a trace. When she reappears after a few days, she is silent and looks at her father with even more suspicion...