A short film based on the book by Slovak author Pavol Zeleňák, "Keď sú tajomstvá iba služobné" (When Secrets Are Only Official). In four tragicomic short stories—banking, confessional, medical, and state secrets—the viewer learns what can happen when bank clerks, priests, doctors, and ministers reveal or abuse official secrets. Regardless of the reason for their actions, they can cause curious problems or even tragedy.
Unfortunately the movie Tajemství pouze služební is not yet available on Disney Plus.
| Directing | Pavol Zeleňák | Director |
| Sound | Lukáš Černý | Music |
| Production | Tomáš Magnusek | Producer |
| Writing | Pavol Zeleňák | Writer |
| Costume & Make-Up | Blanka Magnusková | Costume Design |
| Costume & Make-Up | Lucie Prymšová | Makeup & Hair |
| Sound | Tomáš Oramus | Sound |
| Editing | Pavel Mědílek | Editor |
| Costume & Make-Up | Lucie Prymšová | Makeup Artist |
| Production | Šárka Čmelíková | Production Manager |
| Camera | Tomáš Drdácký | Director of Photography |
| Crew | Pavel Mědílek | Second Unit Cinematographer |
| Camera | Matěj Brothánek | Director of Photography |
| Costume & Make-Up | Blanka Magnusková | Costumer |
| Production | Pavol Zeleňák | Production Manager |
| Crew | Milada Thérová | Catering |
| Camera | Zdeněk Šašinka | Still Photographer |
| Production | Lucie Prymšová | Production Manager |
| Writing | Pavol Zeleňák | Story |
| Directing | Táňa Krejzová | Script Supervisor |