Kraków, Poland in 1958. Bronek Budny, after graduating from the officer school of the Ministry of the Interior Affairs, takes a job in the Security Service division in Kraków, in the department dealing with “anti-state” activities of the clergy. His first task is to gather information about Father Wojtyła, who is unknown to the security service, and who has just become the youngest bishop in Poland. Budny is an ideological communist and perfectionist, utterly devoted to his work. For the next 20 years, until Wojtyła's election as Pope, he will remain in his shadow. He will spy on him, photograph him, record his sermons, tap his phones, investigate the people he meets, and methodically expand his secret file on Wojtyła. The film is directed in a form of an action drama. It tells a story of the universal struggle between Good and Evil and the clash between Sacrum and Profanum. It is also a psychological study of a self-destructive obsession.