Haltet die Welt an: Katja Winzer lives with her eight-year-old son Tobias and her partner Jürgen in a small town near Bremerhaven. When Tobias does not come home one evening after playing games, and broadcasts remain fruitless throughout the circle of friends, Katja turns on the police. For Katja begins a nightmare of waiting, hope and fear, where she threatens to break. Only weeks later, the terrible idea that Tobias could have become a victim of a violent crime, to the certainty.