The rivalry between Albert Gambier, head of the municipal brass band, and the jazz band, led by Jacques Hélian, provokes many comic adventures in this small provincial town. Everything will end in songs, thanks to the love uniting Jimmy, the band's composer, and Nicole, Gambier's daughter.
Self
Jacques Hélian, an attractive charm singer, too stifled by the jealousy of the radio director's niece, flees with his orchestra, on the advice of his secretary Bob. They fail in a small village, where there is a boarding school for young girls. Bob responds to the love letters the teacher sends to the handsome singer.
Self
"Le Tambourin", a Montmartre nightclub, is on its way down. Although it can boast great performances by the alluring Les Bluebell Girls and by Jacques Hélian's lively Big Band the venue does not attract people anymore. Nightclub patrons now prefer the jazz cellars of Saint-Germain-des-Prés. Taking this new taste into account, the staff of the "Tambourin" and Jacques Hélian decide to set up their own club, "La Pivoine Ecarlate". They are joined by Pâquerette, a flower vendor and amateur singer, and by Jean-Pierre Francis, an existentialist poet...
A man is too shy to ask a girl out and decides to kill himself. While lying in the road he is rescued by a Doctor who tries to cure him by implanting the heart of a rooster into him, something which suddenly makes him irresistible to women.
Self
A series of crimes is being perpetrated around a famous singer. Strangely, during each of the crimes, the artist's voice is heard humming his favorite song. Suspicions lead to a chase through a nocturnal Paris, ending in a disused theater where the assassin has lured his final victim.
