A scientist invents a product destined to make vegetables grow larger. His nephew, until then totally lacking a penis, drinks a little of this liquid by accident and from then on develops outsize genitals that lead some of his acquaintances to become jealous.
| Camera | Jean-Paul Sergent | Director of Photography |
| Writing | Jean-Pierre Mocky | Screenplay |
| Sound | Francis Bonfanti | Sound Director |
| Writing | Vladimir Cosma | Musical |
| Directing | Jean-Pierre Mocky | Director |