School secretary Annett Ludwig jogs by the sea. Under a steep cliff, she discovers a dead teenager: Theo Jacobsen, a student at her school. The 17-year-old was considered an inconspicuous outsider. Karin Lossow knows Theo from business school, where she teaches a course on legal issues as part of a project week. Coincidentally, she had witnessed a bullying attack on Theo, who was at the top of her class, and offered to help the boy. Rainer Witt and his colleagues Holm Brendel and Dorit Martens examine Theo's laptop. It turns out that he ran a buoyant trade in test questions, which he sold to his classmates, making thousands of dollars in profit. To do this, the alleged model pupil used access to the board of directors' surfer – the password was only known to school secretary Ludwig. Theo was deeply in love with their daughter Paula. But Paula has a crush on Karol Wilcek, who can't do anything with her pubescent classmate. (thetvdb.com)