This book on one side tells the story of Mister Good-luck, but, if you turn it upside down and start reading it from the end, then you will read Mister Bad-luck’s adventure. Both guys live in the same building, but they do not know each other. One is an extremely tidy and organized person who takes life as it comes. The other guy, who’s a real mess, is always grumpy, and is always fighting against everything and everything is always fighting against him. Fate will lead them to go on holidays to the same place at the same time. They find themselves in a remote island. Over there, Mister Good-luck manages to lose the winning ticket at the lottery, but he will also find true love. Mister Bad-luck will find a lost lottery ticket… the winning one! Who is the luckiest guy between them both? What’s luck? How dos everyone contribute to create his own luck? The illustrations of this book hide 1,793 little details that invite the reader to think about the mechanism of chance and the curious fate that determines our lives.