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 |
| Writing | Franco Verucci | Screenplay |
| Camera | Jean-Jacques Tarbès | Director of Photography |
| Directing | Valérie Moncorgé | Assistant Director |
| Writing | José Giovanni | Screenplay |
| Sound | Claude Bolling | Original Music Composer |
| Editing | Jacqueline Thiédot | Editor |
| Directing | Bernard Quatrehomme | Assistant Director |
| Directing | Luigi Biamonte | Assistant Director |
| Sound | Jean Labussière | Sound |
| Art | Willy Holt | Production Design |
| Production | Alain Delon | Producer |
| Directing | Philippe Baronnet-Fruges | Assistant Director |
| Costume & Make-Up | Mimi Gayo | Costume Designer |
| Camera | Jean-Claude Bourgoin | Camera Operator |
| Sound | Jean Nény | Sound Mixer |
| Sound | Django Reinhardt | Music |
| Costume & Make-Up | Fernande Hugi | Makeup Artist |
| Costume & Make-Up | Françoise Andrejka | Makeup Artist |
| Production | Raymond Danon | Delegated Producer |
| Production | Ralph Baum | Executive Producer |
| Directing | Lucile Costa | Script Supervisor |
| Crew | Jo Jo Iaconelli | Special Effects |
| Costume & Make-Up | Pierre Vadé | Hairstylist |
| Costume & Make-Up | J. P. Wirtz | Hairstylist |
| Art | Gérard Viard | Assistant Decorator |
| Costume & Make-Up | Hélène Mourry | Costume Designer |
| Production | Ludmilla Goulian | Production Director |
| Sound | Noëlle Balenci | Sound Editor |
| Art | Louis Boussaroque | Assistant Decorator |
