Oskar and Mona meet when they come to the Academy of Music to see if they have been accepted, he as a piano student, she a singing student. They become a couple and married but soon there are the frictions. Mona gets hundred crowns from her father, because he thinks she has become so charmless. For it, she buys a perfume called Three Wishes.
Siv Blom is a young impulsive girl with a special ability to come up in extraordinary situations. She also sleepwalks and one day strolling she sleepwalks unsuspecting into the bedroom to the sublime painter 'Picasso'. The art painter comes to admire her naivete, but doesn't have enough time for her. After that Siv stumbles across a new man, a junior manager in the firm Høyland & Høyland. Høyland jr. falls for Miss Blom, but definitely not his mother. Therefore Siv is sent on business to Stockholm and thus she meets man no. 3, the womanizer Victor Wahlin. Who to marry now that Siv has acquired three very eager suitors whom all wants Siv's consent. The stage is set for many intrigues. Who wins?
The title of this film "En herre med bart" translates as "A Gentleman with a mustache." It is the the story of a married couple, a hardworking lawyer and his wife. The wife is fed up with the marriage and wants a divorce, something the husband won't let her have.