A sleeping car employee seeking a well-deserved rest is prevented from doing so by the crowing of his neighbor's rooster. Just as he's about to settle the score, he's presented with a gift: a rubber band around the annoying bird's beak temporarily puts an end to its vocalizations. But the animal can't be left alone, and Pierre has to take it with him on his nocturnal journeys: you can imagine the disturbance it can cause when, after being thrown out of a wagon window, it lands in the next van fu...