A little pest always dressed in black, Rosie regards the world around her with a sardonic and decidedly unconventional eye. What she likes is doing nothing, eating ice cream, and especially laughing at other people. Her mother, her young neighbour Olive, Miss Calendula and even Anne-Flo: she spares nobody… Except perhaps Blackie, her best imaginary friend, a green sheep she makes appear whenever she needs it. In short, Rosie makes fun of us, of you, of everything… and she loves it!