French comedy based on the 1950s comics by René Goscinny. Eight-year-old Nicolas has an idyllic life, with loving parents, good friends and a happy school life. His carefree existence soon changes, however, when he overhears a conversation between his parents, which he misinterprets. With his imagination running wild, he soon jumps to the conclusion that his parents will be too wrapped up with their new arrival to spare any time for him, and quickly sets about planning how to keep things just the way they are.