Karla and Lissy, both in their final year at school, decide to use pepper spray to simulate a gas accident in the chemistry lab. This way, they hope to get out of the math test that is scheduled for the same day. When the spray goes off by itself in the girls' bathroom, their plan is ruined, and Karla invents the story of an alleged attacker. The next day, Sven's new assistant Parwes is mistaken for the culprit and hides from angry students and parents. Pippa is the only one who knows that the girls have lied and is condemned to silence. While emotions and prejudices are running high at the school, the Pfefferkörner set a trap for Karla.
Karla and Lissy, both in their final year at school, decide to use pepper spray to simulate a gas accident in the chemistry lab. This way, they hope to get out of the math test that is scheduled for the same day. When the spray goes off by itself in the girls' bathroom, their plan is ruined, and Karla invents the story of an alleged attacker. The next day, Sven's new assistant Parwes is mistaken for the culprit and hides from angry students and parents. Pippa is the only one who knows that the girls have lied and is condemned to silence. While emotions and prejudices are running high at the school, the Pfefferkörner set a trap for Karla.