Lothar Schmidt

Professor Stock and his wife Mizzi are always bickering. Mizzi tries to seduce Dr. Franz Braun, the new husband of her good friend Charlotte. Dr. Braun's colleague, Dr. Mueller, who has had his eye on Charlotte, sees this as his opportunity, even though the Braun's are very happily married... (imdb)

Andre and Colette Bertier are happily married. When Colette introduces her husband to her flirtatious best friend, Mitzi, he does his best to resist her advances. But she is persistent, and very cute, and he succumbs. Mitzi's husband wants to divorce her, and has been having her tailed. Andre gets caught, and must confess to his wife. But Colette has had problems resisting the attentions of another man herself, and they forgive each other. (imdb)