Brussels in the year 1568, as the Flemish people are fighting against the tyranny of the Spanish occupiers. Led by Count de Rysoor, the revolt against the ruthless Duke of Alba, is meant to help Prince William of Orange to get into the city and come to power. Now, the count's lieutenant, has an affair with Elisabeth, Rysoor's wife. For the time being, the count, who thinks of his homeland first, turns a blind eye. But such a relationship might well undermine the whole rebellion movement.

The bungling inspector Cruchot finds himself trying to save the residents of St. Tropez from some oil-drinking humanoid aliens. The only way to tell the aliens from the real people, besides their constant thirst for oil-products, is that they sound like empty garbage cans when you touch them. Chaos is ahead.