A murder of a convict held in custody seems to be connected with dark and mysterious events from two years back.
Friendship connecting a group of people is put in jeopardy by life's setbacks.
The film shows an obscure episode from the life of a Stalinist criminal - Colonel of the Office of Public Security, Julia Brystiger. Her nickname was "Bloody Luna" because during interrogations she tortured prisoners with extreme cruelty. At the beginning of 1960s she appeared in Laski near Warsaw, in the Institute for the Blind, where the Primate of Poland, Cardinal Stefan Wyszynski, was also a frequent visitor. His imprisonment in the years 1953-1956 was supervised by none other than Julia Brystiger herself. During the difficult and tempestuous conversation with the Primate, Julia Brystiger rejects the communist ideology, asks for her crimes to be forgiven and for help in finding God.
Betrayed and abandoned by her boyfriend on wedding day, Kalina has decided to open unusual business that will once and for all solve problems of male fidelity. She decided to help women testing loyalty of their partners. Everything goes well until Kalina has to seduce Maciej - coach and specialist in female - male affairs. His wife Beata suspects that he is cheating on her and wants to have irrefutable evidence. Kalina, knowing class "opponent" starts working with redoubled energy, but this time all her plan goes wrong. Maciej is not like other man whom were easily caught cheating.
Karol, an ordinary young man, runs into a much older man, whom he believes to be the so-called Red Spider, the terrifying serial killer prowling the streets of Kraków in the 1960s. Karol becomes obsessed with the man and spies on him. In the meantime he meets Danka, a slightly older photographer, working for the local newspaper. Tempted by love, fascinated by death, Karol will soon have to make the most important choice of his life.