Physics teacher Akif Erdem, the protagonist of the story, wants to give a lesson in humanity to his students. Only Akif Teacher uses a different teaching method than the teachers we know and are used to.

Akif Erdem takes the 12A class of Kücükkapi High School hostage and uses a bomb to tear the class apart from the rest of the school. Children and Akif will not be able to go out anymore. And he asks them a question: "Who among you caused the death of 12A student Rüya Örnek? There is only one way for young people taken hostage to get out of this situation: telling the truth. Students will eventually understand and love Akif, who teaches them and even the whole country, the importance of being a good person and to empathize and think.