An unmarried actress in Munich becomes pregnant but decides against marrying the child's father, and eventually moves in with a more agreeable man she meets on a winter sports holiday.
Unfortunately the movie 1+1=3 is not yet available on HBO Max.
| Production | Peter Genée | Producer |
| Sound | Andreas Köbner | Music |
| Production | Heidi Genée | Producer |
| Directing | Robert Busch | Assistant Director |
| Production | Veith von Fürstenberg | Producer |
| Costume & Make-Up | Helga Beyer | Costume Design |
| Editing | Helga Beyer | Editor |
| Directing | Heidi Genée | Director |
| Writing | Helga Krause | Writer |
| Crew | Gernot Roll | Cinematography |
| Writing | Heidi Genée | Writer |
