In anger, someone set fire to the school gym. Eleni and her friends are conducting their own investigation to find out who was involved in this arson attack and the subsequent ones. In addition, there is again a confrontation between girls and guys from the class, who consider them too annoying, and their struggle for equality is just another "getting out". Whether Elena, Tilde and Yasmin will be able to expose the arsonist and, together with other girls, achieve the fulfillment of their demands — read in the book "annoying girls" — the continuation of the story of "scary girls"