Werner Freese recklessly causes an accident that results in death and flees. His son Marcel notices the crash, but Freese remains uncooperative. While Tom and Semir investigate, Tom recognizes Freese's wife Isabelle as his childhood sweetheart. Freese is suspected, but remains free due to a lack of evidence. Driven by jealousy and madness, he brutally beats Isabelle and threatens to kill her. Marcel finally confesses the truth, whereupon Tom and Semir catch Freese and save Isabelle.