Several high-ranking officials of the Federal Criminal Police Office commit suicide in the most brutal manner and under mysterious circumstances. Sabina Nemez, commissioner of the homicide investigation team and teacher at the BKA Academy, immediately suspected something was wrong. Much points to a long-standing conspiracy and a victim seeking revenge. Sabina asks her former colleague, suspended profiler Marten S. Sneijder, for assistance in a complicated case. But he refuses to cooperate and convinces her not to interfere. However, when Sabina disappears without a trace, Sneijder springs into action. Thus, he crosses the path not only of a murderer filled with hatred, but also of his former comrades, who are ready to do anything to hide the sins of the past forever...