With no contract in view, Aimé Barelli, the leader of the band of the same name, decides to take a holiday. As this is the Holy Year, the young artist accepts to follow his mother on a pilgrimage to Rome. His band members - complete with their agent - decide to follow suit. Good idea because on the train to Rome, there is a whole class of charming schoolgirls, including charming Rosita and - surprise ! - Nicole, Aimé's pretty but elusive beloved. The trip is cheerful but eventful and life gets even more complicated with the interference of Duranval, a fake talent agent but genuine trouble shooter. At a time confusion is such that a bomb explodes and the whole gang find themselves in ... heaven! But Saint Peter has pity on them and sends them back to earth. At long last Aimé can marry Nicole while his musicians spread mirth around them.
| Actor | Role |
|---|---|
 Aimé BarelliSelf | Self |
 Grégoire AslanErnest Duranval | Ernest Duranval |
 Pierre DestaillesThe twins | The twins |
| KKenneth SpencerKenneth | Kenneth |
 Nicole FrancisNicole, daughter of Max | Nicole, daughter of Max |
| CCécile DidierAimé's mother | Aimé's mother |
 Jeanne HervialeBéatrice, the director of the convent | Béatrice, the director of the convent |
| JJosé BartelJosé | José |
 Gregori ChmaraFred Smith | Fred Smith |
| MMireille CarralRosita | Rosita |
| DDanjouNot listed | Not listed |
| GGuy MairesseNot listed | Not listed |
 Jacques SablonNot listed | Not listed |
| RRoland BernardNot listed | Not listed |
 Jean DunotMax | Max |
 Fred PasqualiRameau | Rameau |
 Nicolas AmatoCustoms clerk (uncredited) | Customs clerk (uncredited) |
 Paul FaivreSurgeon (uncredited) | Surgeon (uncredited) |
 Charles LemontierStation master (uncredited) | Station master (uncredited) |
 Franck Maurice(uncredited) | (uncredited) |
| AAnnie Noël(uncredited) | (uncredited) |
 Fernand RauzénaCommissioner (uncredited) | Commissioner (uncredited) |
 Yvonne YmaGossip (uncredited) | Gossip (uncredited) |