A group of young boys develops a crush on a girl, leading to jealousy toward her boyfriend. They scheme to disrupt their relationship, and when the boyfriend catches one of them spying, he punishes him harshly. In retaliation, the boys attempt to make the girl doubt her boyfriend's love.
Unfortunately the movie The Mischief Makers is not yet available on HBO Max.
| Directing | François Truffaut | Director |
| Camera | Jean Malige | Director of Photography |
| Sound | Maurice Le Roux | Original Music Composer |
| Editing | Cécile Decugis | Editor |
| Production | Robert Lachenay | Production Manager |
| Directing | Claude de Givray | Assistant Director |
| Directing | Alain Jeannel | Assistant Director |
| Camera | Jean-Louis Malige | Assistant Camera |
| Editing | Michelle de Bossell | Assistant Editor |
| Writing | Maurice Pons | Short Story |
| Writing | François Truffaut | Screenplay |
