The 16 years old drug addict Verena Franklin is traveling in a taxi towards the building where her friend Klaus Wegener is living.In her briefcase she has a revolver.She arrives and enters into the building til the fourth floor.The commissioner Leo Kress and his daughter Sabine are in a laundry in front of the building: suddenly the manager of the laundry notices that a woman jumps down from fourth floor She falls on the sidewalk and later dies in the ambulance going to the hospital.A policeman asks Leo Kress to come to see the apartment from which the young woman jump: there is a corpse of man who is been stabbed to death, the record-player is still sending music.The man who has received 20 stabs is Klaus Wegener, the friend of Verena Franklin.
—zutterjp48