After mail deliveries repeatedly disappear from front yards, Hubert and Girwidz lie in wait. They want to catch the thief red-handed. When a package disappears before their eyes in a moment of inattention, they search the surrounding gardens for the thief. In doing so, they stumble upon a man's body. It is Florian Müller, who was killed by a solar panel. The police assume it was an accident or botched workmanship and call solar technician Jens Hufnagel to the scene. It is Florian Müller, who was killed by a solar panel. The police assume it was an accident or botched workmanship and call solar technician Jens Hufnagel to the scene. He determines that someone loosened several panels of the photovoltaic system on the roof
