85 minutes
5/17/1953
Professor Charles Buisson, astronomer and Nobel Prize winner, has just discovered a nova. He informs the other observatories by telephone. Just as he thinks one of them is calling back, he finds himself on the line with a young woman threatening suicide at the Ruban Bleu cabaret, if her lover hasn't joined her by midnight. Intrigued, the professor decides to go and prevent the unfortunate woman from committing suicide. One of his students, who earns her living as an understudy in a knife act, helps him in his investigation, while the school principal and a policeman suspect him of being a prankster or even of selling drugs. For the scientist, it's an opportunity to discover a world of music-hall that he'd never known before: "I thought I knew the sky chart by heart, but there's one planet that was totally unknown to me: Earth. I'll be back!
Michel Simon
as Professor Charles Buisson
Brigitte Auber
as Gisèle, student of Buisson
Henri Génès
as Lucien Mosca, boss of Ruban Bleu
Germaine Kerjean
as Mrs. Rédéri
Anne Campion
as The determined trafficker
Philippe Mareuil
as Pierre-Dominique, aka 'Pépé'
Robert Lombard
as Maurice, Buisson's assistant
Georges Galley
as Patrice
Suzanne Norbert
as Mrs. Buisson
Gaby Basset
as Henriette, washroom attendant
Micheline Dax
as The indecisive snob
Leila Lampi
as Russian Princess
Janine Clairville
as Woman from Paris
Nadine Tallier
as Poupette, presenter of the show
Annick Tanguy
as Woman from Paris
Liane Morice
as Woman from Paris
Nikitine
as Woman from Paris
Liliane Montevecchi
as Woman from Paris
Jacqueline Ventura
as Woman from Paris
Gisèle Fréry
as Woman from Paris
Nicole Rimbaud
as Cloakroom attendant
Janine Caire
as Florist
Bernard Lajarrige
as Inspector Corbin
Robert Lamoureux
as Self
Patachou
as Self
Ray Ventura
as Self
Jean-Marc Thibault
as Self
Roger Pierre
as Self
Les Quat'Jeudis
as Self
Jacques Grello
as Narrator
Françoise Alban
as Magda, the pregnant dancer (uncredited)
Jack Ary
as Cowboy (uncredited)
Danièle Delorme
as Young female client of Ruban Bleu (uncredited)
Sophie Desmarets
as Self (uncredited)
Sacha Distel
as Self (uncredited)
Pierre Duncan
as Policeman at Quai des Orfèvres (uncredited)
Bob Ingarao
as Arsène the toothless (uncredited)
Dominique Marcas
as Woman with stomach ache (uncredited)
Michel Seldow
as Police officer (uncredited)
Henri Serre
as Young customer of Ruban Bleu (uncredited)