Jung and Margot Sauerbruch fear that Fritz Kolbe, the lover of Sauerbruch's secretary Maria Fritsch, is a spy who gives clinic intel to his superiors.
Christel, a nurse and avid Nazi supporter, finds a leaflet of the that belongs to the patient.
Koch hopes his breakthrough will finally get him the finances he needs to get a divorce, and marry Hedwig.
The police call Margot and she confirms that Otto rejected Nurse Christel, and Otto is released.
He struggles at first, but ultimately passes his test.