The leading specialist in sensational cinema Patryk Vega discovers the most famous pathologies in Polish football clubs. Links with the mafia and gangsters, match fixing, threats, intimidation and aggression in stadiums - all in a movie full of stars in which the leading roles are played by: Antoni Królikowski, Maciej Stuhr, Andrzej Grabowski, Piotr Stramowski, Małgorzata Kożuchowska, Katarzyna Zawadzka and Zbigniew Zamachowski , supported by by members of the Polish football team - Kamil Grosicki and Sławomir Peszko. "Bad Boy" is not only a production inspired by real events, which reveals the darkest side of the football environment. It is also a story full of action and expressive characters about love, betrayal, lust and women who prefer naughty boys.

When a woman is involved, even blood ties no longer matter. Two brothers, whose life paths diverged long ago, will find out. Elder Piotr (Maciej Stuhr) became a policeman, for younger Paweł (Antoni Królikowski) assaults, thefts and drugs are a lifestyle and daily bread. However, the impunity of a man caught up in belonging to a supporter Hard gang (Piotr Stramowski) ends when he is imprisoned by denunciation. Piotr, an experienced cop, decides to get his brother out of the cell, in which he is supported by a new girl Ola (Katarzyna Zawadzka), a lawyer finding paragraphs for the most difficult cases. Meeting these three changes everything and initiates a series of events full of twists and turns. Paweł, taking advantage of opportunities, tries to take control of the largest football club in the city. However, he does not notice that he has long been in the crosshairs of a secret police section led by Adam (Andrzej Grabowski) and prosecutor Anna (Małgorzata Kożuchowska). Meanwhile, infatuated with Paweł Ola, she is getting more and more involved in fascinating acquaintance and related illegal interests. Soon she would have to choose between loyalty to Piotr and the nascent affection for his brother.