The noble knights of yesteryear - like the Three Musketeers - threw themselves carelessly into battle to save a lady's honor. The knights of our time are on motorcycles - and they are used for that. A young girl is to be married - but before the wedding she is pressured by an ex-boyfriend who wants to publish her letters to him. Four friends go on motorcycles to Stockholm to sort out the peas...
Under the city's roofs, life goes on in a motley manner. It alternates with tears and smiles, with happiness and sadness. In the artist restaurant "Mona Bar" in the inner city, the former model Mona Frank acts as the goddess of artists. She helps with both money and heartache. Among the many artists, Niels Brandemose has his own face. He has recently come to the city to attend the Academy, and his whole desire and desire is to become a painter.
Ludvig Brandstrup is a radio announcer and performs with great experience in front of the microphone. But the director is not exactly taking care of his duties; he has forgotten to inform the artists who will assist with the broadcast. This forgetfulness is a very serious blunder. On top of that, an award-winning radio play, "Where is Jensen?", is to be broadcast, and now the actors are missing. Brandstrup is desperate and distraught, until he gets the bright idea to play all the roles himself.
