ðə fˈɪlmz stˈɑːɹ, ðə pˈɑːpjʊlɚɹ ˈæktɚ hˈaɪnz ɹˈuːhmən, hæd ɪnsˈɪstᵻd ðæt dˈuːɹənmˌæt kəlˈæbɚɹˌeɪt wɪððə skɹˈiːnɹaɪɾɚ hˈænz dʒˈækoʊbi, ænd ðə stˈoːɹi hæd ɐn ˈɛndɪŋ ɪn lˈaɪn wɪð ðæt əvə tˈɪpɪkəl dɪtˈɛktɪv stˈoːɹi.
The film's star, the popular actor Heinz Rühmann, had insisted that Dürrenmatt collaborate with the screenwriter Hans Jacoby, and the story had an ending in line with that of a typical detective story.