A retired employee of the police archives, Henryk Mikos, set a point of honor in resolving cases forgiven years ago and putting the culprits in the hands of justice. Henryk analyzed the files for years and ... waited patiently. Due to a coincidence, the ambitious young policewoman Zuza Wasiluk goes to the archive, which Henry considers to be his kingdom. Initially, he considers the old gentleman a freak, but he quickly concludes that it is worth working with him. Henry makes Zuza a secret accomplice in criminal investigations, and when necessary - armed protection. Henryk and Zuza also engage Tomasz Stachure, a police officer who has a crush on her.