A popular series of detective stories is returning to Czech television, in which its authors deliberately break some of the rules that, according to Father Knox, underpin the purity of the detective genre. It will be presented by director Dušan Klein himself, the author of the novel was Josef Škvorecký. When it premiered in 1992, the series was broadcast live and the basic question was then a competition. But even during the reruns, viewers can test their perception, this time non-competitively. They can then check the correctness of their deduction at the end of each episode.