Young Katerina ends up in a music school, and then in a dormitory. Having fallen in love with one guy, she notices that another girl is slowly starting to kill the moral values of her neighbors. Katya will have to learn a lot of new, funny and extremely sad things, and also try to save those who are in danger. Attention! The author of this book does not support suicide! With this book, I only wanted to show how many girls influence other girls, everything is exaggerated, so that girls in love (and boys too) would understand that they cannot fall for hypnosis and all sorts of threats in order to avoid bad consequences! 18+ for describing unpleasant scenes.