In 1935, in a Quebec village, a boy observes with curiosity the little intrigues of the adult world.
A young pilot witnesses the unintentional murder of her two sons (by a rich, drunken couple driving carelessly) and, following a court's decision not to press criminal charges, she decides to get her revenge.
Yo-Yo and Alphonse go on crusade against injustice, poverty and misery. In their pursuit of happiness, the high priestess of the street and the little prince have an infallible recipe: a ...