A kid who tries to turn the tables on a bully has his plan backfire on him in this comedy-drama from Spain. Gaby (Eduardo Gare) is a seemingly ordinary teenager attending high school, and like most kids in school he has to put up with bullies. Gaby has become a target for abuse from Guille (Eduardo Espinilla), a big and arrogant guy who has a handful of friends that help him play cruel but imaginative pranks on his classmates. Gaby's mother Merche (Elvira Minguez), the host of a local news show, and father Joaquin (Antonio de la Torre), who sells and installs security systems, are worried about their son's safety, though they're not sure what to do about Guille. As it happens, Guille's family isn't sure what to do either, and his father Guillermo (Lluis Homar), a loud-mouthed local politician, and mom Magda (Paz Padilla) are as frustrated as anyone else. One day, after an especially humiliating ribbing from Guille, Gaby finally loses control and punches him out, but clever Guille is able to persuade the school authorities that Gaby struck him without provocation, and suddenly Gaby finds himself singled out as the bad guy.