"At last, they were close enough to see what looked like the backdrop of some poor quality alien invasion movie. Green goo covered the streets that lay before them, coating every available surface in sight. And Paris' residents were sliding around on this mysterious substance, calling out to each other, trying to get away, arms waving comically in a windmill-like motion, trying to regain their balance. " Who would have thought a necklace could turn a life around in one day? When an unexpected guest turns up on Sandra's balcony, the young waitress finds herself tangled up with Paris' superheroes, and suddenly she is supposed to save the day? Aided by the distractingly gorgeous Chat Noir, Sandra races against the clock to prove to not only to herself but all of Paris that she is worthy of the chameleon Miraculous. A Miraculous tale of bravery, love, disappointment and cat-puns.