20-year-old Olya is not an easy character. Friends say that Olya is evil. Olya goes to a psychologist and in sessions with him tries to give his anger a place, to release anger. She tells the psychologist about all the people who infuriate her, and wishes them death in terrible agony. A teacher at the institute, best friend, boyfriend, father, mother… They all annoy Olga very much. And suddenly they all start dying one by one under mysterious circumstances.
Seventeen-year-old Artyom is invisible in the family and a rebel in the technical school. He has a best friend, Kostya, and they do all the provocations and tricks together. When the management of the technical school compiles an unofficial list of dangerous teenagers - "explosives", Kostya, by pure chance, falls into the first place, which makes him popular among other students. Kostya revels in interest in himself - and betrays his friend, convincing his classmates that he, Kostya, is the main and only inspirer of all their antics. Then Artyom decides to prove who the “number one bomber” is really here. But on his way, a girl, Kira, unexpectedly appears, who is able to influence his dangerous plan.