Psychological thriller that focuses on the intense conflict between a university professor and a blackmailer.
| Directing | Wolfgang Petersen | Director |
| Editing | Traude Krappl-Maass | Editor |
| Writing | Horst Bosetzky | Novel |
| Writing | Manfred Purzer | Screenplay |
| Sound | Klaus Doldinger | Music |
| Production | Luggi Waldleitner | Producer |
| Production | Ilse Kubaschewski | Producer |
| Camera | Charly Steinberger | Director of Photography |
| Sound | Hans Joachim Richter | Sound |
| Sound | Peter Beil | Sound |
| Editing | Ingrid Schneider | Assistant Editor |
| Costume & Make-Up | Irmgard Daecke | Costume Design |
| Costume & Make-Up | Evelyn Döhring | Makeup Artist |
| Costume & Make-Up | Ursula Campbell | Makeup Artist |
| Art | Dieter Mischke | Property Master |
| Art | Harry Freude | Set Decoration |
| Camera | Leo Weisse | Still Photographer |
| Camera | Bernd Elstner | Assistant Camera |