Kryminalni was a Polish crime drama television series that aired on TVN network from September 18, 2004 until May 24, 2008. It ran for 8 seasons and 101 episodes were broadcast in total. It was created by Polish director and screenwriter Piotr Wereśniak and produced by MTL Maxfilm studio. The series followed life and work of police officers from the elite Criminal Terror and Murders Division of the Warsaw Metropolitan Police; the title refers to police officers in the crime section. The three main characters were Adam Zawada, an experienced, tough cup, his younger colleague Marek Brodecki and Barbara Storosz, an ambitious female officer who in the first season joins the team just after graduating. Although none of the main actors had had star status before the series debuted, all three of them rose to prominence and popularity during the 5-year-long run. Many of Poland's best known actors guest starred, usually playing roles of people involved in just one particular investigation. The serial was one of the most popular in Poland: each week it had an audience of 4 million.

Dwudziestosześcioletni Łukasz, niesłusznie posądzony o napad na starszą kobietę, trafia do aresztu śledczego. Adwokat wynajęty przez matkę bezskutecznie próbuje go stamtąd wydostać. Pod wpływem dramatycznych wydarzeń w celi przejściowej Łukasz za wszelką cenę chce znaleźć się wśród grypsującej części więźniów. Świat gitów wymaga jednak przestrzegania panujących tu twardych zasad. Reżyser uzyskał zgodę Ministra Spraw Wewnętrznych na realizację zdjęć w więzieniu na Białołęce.

Ewa is a beautiful, happily married woman. One day she meets a young woman claiming to be in affair with her husband. Ewa, shocked, doesn't know whom to believe any more.

It is July 1995. Kuba Mitura and his little daughter, Zuza, come to a great concert organised by Jurek Owsiak. Kuba tells the girl the story of his youth. It is 1988. The nineteen-year-old Kuba is a rebellious boy with two-coloured hair. He does not study or work. He lives with his father, a retired military man, bitter and apodictic and with his aunt. One day Kuba meets Diana, a beautiful and eccentric woman, a dozen or so years older than him, a person from the "hostile world". However, the two of them become friends. The father throws Cuba out of the house when he introduces Diana as his fiancée. Soon Diana and Cuba get married to a "hippie", but the military policemen, who have been sent by the father, take Cuba away. In the army, Cuba is doing absurd exercises under the watchful eye of Corporal Kos trying to raise him. The father takes the oath and Diana, who confesses to Cuba that she is pregnant and wants to give birth. But Cuba does not want to become a father.

Twenty years old prostitute and drug addict, Jola, by chance meets Andrzej, a "railway station gay". They try to stay together, in spite of numerous diffculties. They both are carriers of the HIV virus. At the end of their travels they find themselves in the Red Palace - formerly the recreation centre for Party dignitaries, now a home for AIDS sufferers - which is run by father Jan. In the nearby small town aggression begins to grow again the unwanted guests; the house have been promised to the local people for housing purposes... The lives and fates of Jola, Andrzej, and father Jan become increasingly intertwined with one another...

Do jednostki wojskowej przyjeżdżają nowi poborowi. Starsi koledzy ostrzegają ich przed Tygrysem, byłym kryminalistą, faktycznym władcą kompanii, słynącym z bezwzględności i sadyzmu. Co gorsza jest on w praktyce bezkrany, gdyż przełożeni chociaż wiedzą o jego wybrykach, nie reagują. Już pierwsze dni służby wystawiają cierpliwość świeżo upieczonych "kotów" na ciężką próbę. Grupka starszych żołnierzy, czekających na przejście do rezerwy bije, upokarza i demoluje dobytek poborowych. Ich okrucieństwu i złośliwości najodważniej próbuje przeciwstawić się niejaki Kowalski.

A parliament member's sixteen year old daughter Agatha falls in love and runs away with a convicted young tramp, while her father uses his friends in the government and police to brutally break their happiness.