De zigeuner Hugo is ontsnapt uit de gevangenis en pleegt nu met twee handlangers bankovervallen. De politie zit hen op de hielen, maar het trio weet hen steeds een stap voor te blijven. Een juwelendief, Yan Kuq, is eveneens op de vlucht en duikt onder in een hotel, waar Hugo en zijn vrienden zich eveneens bevinden. De politie bestormt het hotel, maar Hugo weet te ontsnappen. Later ontmoeten Hugo en Yan elkaar opnieuw, maar de politie jaagt nog steeds verbeten op de twee mannen.
| Directing | José Giovanni | Director |
| Writing | José Giovanni | Novel |
| Sound | Claude Bolling | Original Music Composer |
| Directing | Valérie Moncorgé | Assistant Director |
| Directing | Bernard Quatrehomme | Assistant Director |
| Sound | Jean Labussière | Sound |
| Production | Alain Delon | Producer |
| Camera | Jean-Jacques Tarbès | Director of Photography |
| Art | Willy Holt | Production Design |
| Directing | Luigi Biamonte | Assistant Director |
| Editing | Jacqueline Thiédot | Editor |
| Writing | Franco Verucci | Screenplay |
| Directing | Philippe Baronnet-Fruges | Assistant Director |
| Writing | José Giovanni | Screenplay |
| Sound | Django Reinhardt | Music |
| Production | Ludmilla Goulian | Production Director |
| Costume & Make-Up | Mimi Gayo | Costume Designer |
| Sound | Jean Nény | Sound Mixer |
| Camera | Jean-Claude Bourgoin | Camera Operator |
| Directing | Lucile Costa | Script Supervisor |
| Costume & Make-Up | Hélène Mourry | Costume Designer |
| Production | Ralph Baum | Executive Producer |
| Art | Gérard Viard | Assistant Decorator |
| Art | Louis Boussaroque | Assistant Decorator |
| Costume & Make-Up | Françoise Andrejka | Makeup Artist |
| Sound | Noëlle Balenci | Sound Editor |
| Production | Raymond Danon | Delegated Producer |
| Costume & Make-Up | Pierre Vadé | Hairstylist |
| Crew | Jo Jo Iaconelli | Special Effects |
| Costume & Make-Up | J. P. Wirtz | Hairstylist |
| Costume & Make-Up | Fernande Hugi | Makeup Artist |
