Laura and Simon, two teenagers, are actually kids like all the others - with a crazy mind and their dreams. But everything changes when a little dark red book full of stories falls into their hands. The strangest thing about it is that it opens by itself, as if the wind had been playing with the pages. They soon realize that they have a puzzle to solve: the symbolism of the numbers from 0 to 10. And so they enter a completely new and strange world into which they are drawn as if by a maelstrom. Unstoppable and ever deeper ...