In an instant, Stefania's life in a small town, where she has girlfriends, friends and a beloved guy, changes dramatically. Mom leaves to work in another country, and Stefa is sent to the big city to her father, whom the girl has never seen. Not only does the father turn out to be a careerist with a bad character, but her new classmates give the girl an icy reception. It turns out that she is fat, ridiculous, tastelessly dressed, ugly, a stupid loser and no one likes her. The only one who is friendly towards Stepha is the guy from the house across the street. But friendship with him can cost a girl dearly. She doesn’t even suspect that she has already become part of someone’s cunning game. And the only weapon that Stefa has is a randomly found diary with secrets and dirty secrets of her enemies. But will the girl be able to use it wisely?