To unravel the mystery surrounding Herzig, Lux can count on Charlie, who is devising a strategy involving Eva Lang, the new ENSI teacher who is very close to the director. Meanwhile, he is forced to resume his stalking to help his friend Oscar, and sees Alma drifting away from him once again.

With the help of the Stalker's Hunters, Lux discovers how, and why, Charlie stalked and manipulated him. By retracing the events, he uncovers the true face of his nemesis.