Professor Sonnenbruck is a scientist who is not particularly interested in politics. Even the meeting in 1943 with his former assistant Peters does not change him. He does not betray Peters, who has escaped from a concentration camp, but that is already enough for him. But after the war Sonnenrbruck gets into a conflict of conscience. He thought that science was finally free of politics again only to find the opposite happening at his university in Göttingen. A medical congress in the GDR brings him together with Peters, who is working on a major research contract there. Sonnenbruck decides to visit Peters.
| Actor | Role |
|---|---|
| EEduard von WintersteinProf. Walter Sonnenbruck | Prof. Walter Sonnenbruck |
 Maly DelschaftBertha Sonnenbruck | Bertha Sonnenbruck |
 Ursula BurgRuth Sonnenbruck | Ruth Sonnenbruck |
 Raimund SchelcherDozent Joachim Peters | Dozent Joachim Peters |
 Harry RiebauerStudent | Student |
 Herbert KöferChristian Föns | Christian Föns |
| KKäte AlvingAgnes Sörensen | Agnes Sörensen |
 Friedrich MaurerTourterelle | Tourterelle |
| KKurt MikulskiAnton | Anton |
| HHans-Georg RudolphMinisterialrat Behnke | Ministerialrat Behnke |
| HHans Joachim SchölermannRektor | Rektor |
 Irene KorbNot listed | Not listed |
 Aleksandra ŚląskaNot listed | Not listed |
 Horst PreuskerNot listed | Not listed |
| AAribert GrimmerNot listed | Not listed |
| RRudolf FleckNot listed | Not listed |
| AAlbert VenohrNot listed | Not listed |
| HHelmuth HinzelmannNot listed | Not listed |
| HHans RoseNot listed | Not listed |
| HHilde SontagNot listed | Not listed |
| KKurt-Otto FritschNot listed | Not listed |
| AAngelika HurwiczNot listed | Not listed |