On the way to her wedding, Bernd Raake's bride is killed in an accident on the motorway. Witnesses accuse Gerd Hagemann of having provoked the crash. The groom runs amok and wants to avenge his bride's death on Hagemann, not knowing that he is pursuing the wrong man. At this very moment, Semir is lying in bed, unable to move, with lumbago and thus unable to come to work. Tom's investigations reveal that fake and defective spare parts from Henrik Wenner's car workshop are to blame for the accident. Wenner has valuable car spare parts counterfeited in Poland and Asia and sells them across Europe. He uses his workshop as his headquarters for his illegal activities. Tom is feverishly searching for Wenner, because the groom has also found out that Wenner is to blame for his wife's death and now wants to avenge her death on the real culprit.