A woman dies in the morning in a mysterious accident on an empty highway. Her son survives seriously injured. Since the mother had taken out a large life insurance policy shortly beforehand, suicide is suspected. Insurance employee Marlies Heidorn investigates the matter. She soon comes dangerously close to another vehicle owner...

A woman dies in the morning in a mysterious accident on an empty highway. Her son survives seriously injured. Since the mother had taken out a large life insurance policy shortly beforehand, suicide is suspected. Insurance employee Marlies Heidorn investigates the matter. She soon comes dangerously close to another vehicle owner...