18-year-old Ralf is on the lookout outside when his friend robs the villa of a wealthy family. Helen, the 37-year-old mother of that family, comes home to see the robber who overpowered her husband. In total panic, Helen grabs the robber’s gun and shoots him. Under pressure from her husband, Helen decides to cover up the robber’s death, while Ralf wants to know what happened to his friend. It is the beginning of a nightmare for both.